RIO - Remote Input/Output Unit

RIO - Remote Input/Output Unit

Features

• 8 inputs - programmable to normally open or closed.
• 18 outputs
• Provides connectors for 3 MRBD Multi-Relay Boards with drivers.
• Easy connection in mounting box (included)
• Easy programming of the unit from the AlphaPro programming tool for PC.
• Connects by RS485 or RS232 to the AlphaCom exchange.
• When using RS485, up to 10 units can be chained.
• With RS485 the maximum distance from the exchange is 1 km.
• Status LED on the board.
• Built-in error indication
• Power must be supplied locally if the RIO unit is mounted outside the exchange room.

Description

The Remote Input Output Unit (RIO) is a flexible way of connecting digital inputs/outputs to the AlphaCom exchange. The devices can operate on point to point connections (RS 232) or on a multidrop bus (RS 485)

The RIO Unit has two circuit boards - the RIO board and the IICE board (Inter IC Connection Board).

Each RIO unit has 8 inputs and 18 outputs. The outputs are connected to the relayboard MRBD. Each MRBD has 6 relays. If all 18 outputs are used, 3 MRBD boards are required. The RIO and the MRBD are interconnected with a cable included with the MRBD. The RIOs can be mounted away from the exchange room, thus reducing cabling. If response time is critical (<2sec), as in audio control, the internal RCIs and RCOs in the exchange should be used.

The RIO is used for:

• Distribution of remote control outputs (RCOs) from the AlphaCom exchange such as door opening, video camera control, additional call indications etc.
• Connection of technical alarm inputs (RCIs). The alarm inputs can be signals coming from temperature control devices, fire panels, burglar alarms etc. The AlphaCom itself provides 6 RCI (2 in ACM) inputs, this can be increased to 140 RCIs by using the maximum number of RIOs.

Connectors and Switches

RIO Board

Connectors and switches on RIO board

IIEC Board

Connectors on IIEC board

Serial Interface setting on the RIO Board - Switch S1: 8

RIO Switch 1-8

Address setting - Switch S1:1-6

Address Switch-settings RIO

RS 495 bus

The RS 485 bus can be maximum 1 km long. Up to 10 RIOs can be connected to the bus. The data pair must be terminated in each end with a resistor equal to the cable impedance, typically 150-ohm.

When connecting the RIOs to the bus, wire stubs must be kept as short as possible, preferably less than 0.5 m. All RIOs must be connected to a common GND reference conductor.

NOTE: Use local power supply for each RIO.

NOTE: Do NOT use the GND reference for power distribution.

RS 485 bus overview

Installation

General Description

The RIO unit should be installed in a dry and dust free environment. There is easy access to connectors and DIP-switches through openings in the front plate. A 15 pin D-sub with 0,5m of color-coded cable is provided for the RS485 connector. The unit can be mounted to mounting rails.

The RIO unit can be installed in the following locations:

• At the connection field of the exchange.
• Elsewhere in the same room.
• Up to 1km away through the RS485 bus, with 10 units chained together.
• Up to 50 m away through the RS232 bus.

Note: if the RS232 connection is used, surveillance and debugging of the RIO is not possible.

Power supply

The RIO unit can use power from the exchange if it is installed in the exchange room; otherwise it must be powered locally.

Cable requirements

RS485

RIO mounted in the exchange room :

• 2 wires for data.
• 2 wires for power from exchange

RIO mounted outside the exchange room:

• 2 wires for data
• 1 wire for ground reference
• 2 wires for local power.

RS232

• 2 wires for data.
• 1 wire for ground reference
• 2 wires for power from exchange/local power

Installation of the RIO system

Power supply

If local power is used, a regulated 24VDC /1A power supply is necessary.

Note; this is NOT supplied from Stento.

If power from the exchange is used, a Power Distribution Board in the exchange is necessary.

CATION
Do not extend power cables from the PDB outside the exchange rack environment. Use local power for remote installation of equipment.

Installing the RIO Unit

The RIO unit is made up of 2 boards, the RIO board and the IICE board.

• Fasten the RIO unit to a mounting rail.
• Supply both boards with +24V and 0V (GND), each board has its own power connector.

A one-pair ordinary installation cable can be used. (Power cable is not supplied.)

• Connect a cable from one of the exchange's RS485 / RS232 ports to the RIO board. There are 3 possible configurations as shown in Figure 6, Figure 7 and Figure 8:
  • A RS485 multidrop bus using power from the exchange, the 0V power connection is also the GND reference for the bus.
  • A RS485 multidrop with local power, then a separate GND reference wire is necessary. With the RS485 it is possible to connect up to ten RIO's to the same bus. This is indicated with the continuing bus, the next RIO will be connected the same way as the one shown.
  • A RS232 point to point with power from the exchange, with the usual TX, RX and GND signals.

A 15-pin D-sub connector with 0,5m cable is provided for connection to the RS485 bus. Note: a 9-pin D-sub for the RS232 connector is NOT provided.

• Check the switch setting

Installing Multi Relay Board MRBD

If only RIO inputs are used, this board is not necessary. But if RIO outputs are used, MRBD boards must be connected to provide 6, 12 or 18 relay outputs.

• Fasten the Relay Board beside the RIO Unit.
• Supply the board with 24 V and 0 V (GND) from the same power supply as used for the

RIO unit. Use a 1-pair ordinary installation cable for this purpose; the cable is not supplied with the board.

• Connect the RCO output cable between the Relay Board and the RIO.
• On the MRBD-board: Check that the jumpers are in position 2 - 3 on switches S1 to S6.
• Switch the power on.

Installation Examples

Figure 6, Figure 7 and Figure 8 show examples where the MRBD board is installed along with the RIO in order to provide additional RCOs.

Installation of RIO Multidrop with Power from the Exchange

Installing the RIO Unit - Power from exchange

* Port 3 is recommended as this by default is enabled for RIO.

Port 1can also be used but has different pinning.

• Interconnect pin 2 and 11 on Port 1, then connect to RIO pin 9 and 11
• Interconnect pin 4 and 9 on Port 1, then connect to RIO pin 2 and 4.
• * The power connector on the RIO board may not be mounted on older versions of the RIO.

Power is then connected to the 15 pin d-sub on the RIO:

• +24V to pin 6 and 13
• GND to pin 5 and 12

Installation of RIO Multidrop with Local Power

Installing the RIO Unit - Local Power

• Port 3 is recommended as this by default is enabled for RIO.

Port 1can also be used but has different pinning.

• Interconnect pin 2 and 11 on Port 1, then connect to RIO pin 9 and 11
• Interconnect pin 4 and 9 on Port 1, then connect to RIO pin 2 and 4.

* * The power connector on the RIO board may not be mounted on older versions of the RIO. Power is then connected to the 15 pin d-sub on the RIO: +24V to pin 6 and 13 GND REF to pin 5

* * * When using local power, the GND of the local power is connected to the exchange GND via the data cable. Make sure that the GND in the local power is floating to prevent ground loop.

Connection of RIO - Point to Point with Power from the Exchange

RIO installation – point to point

• * The power connector on the RIO board may not be mounted on older versions of the RIO. Power is then connected to the 15 pin d-sub on the RIO: +24V to pin 6 and 13 GND to pin 5 and 12

Connection of RCO

Use the cable supplied with the MRBD-board for the 1:1 connection between the RIO Unit and the MRBD-board. Each of the 6 relays has 2 changeover contacts. Relay 1 is controlled by RCO 1; relay 2 by RCO 2 etc.

Connection of RCO Output

Connection of RCI

Connect the cable from the external dry contact to the RCI input connectors on the RIO Unit. Keep the cables as short as possible, maximum distance is 3 m. The inputs can be programmed to be normally open or closed.

Connection of RCI Input

Programming

General

The AlphaPro programming tool is used for programming of the AlphaCom exchange. If you do not know how to use the AlphaPro programming tool, please consult the AlphaPro User Manual, A100K1005.

• Connect the PC to the exchange.
• Start AlphaPro and select the database for this exchange.
• If you do not have the exchange configuration on your PC already, make a Get All from the exchange (this takes approx. 10 - 15 minutes).
• Do the required programming according to the instructions in this chapter.
• Send information to the exchange (Send All or Send Changed).
• Reset the exchange.

Serial Port Setup

A serial port to be used for the RIO unit must be defined:

• From the AlphaPro main menu, select Exchange & System ➝ Serial Ports.
• Select from the list box the serial port to use. You can choose between port 1 to 7 by selecting ACDP Link 1 to 7.
  • ACDP Link 1 and 2 can be either RS 232 (point to point) or RS 485 (multidrop)
  • ACDP Link 3 is RS 485 (multidrop) only
  • ACDP Link 4 – 7 is RS 232 (point to point) only

The Serial Port Setup should be:

• Enabled flag checked
• Bit Rate: 9600
• Parity: None
• Data Bits: 8
• Stop Bits: 1

Data Link Options

When RS 485 is used

• Link Type: ISO1745 Multidrop
• Broadcast: disabled

When RS 232 is used

• Link Type: ISO1745 Point to Point
• Broadcast: disabled

By default port 3 (ACDP Link 3) is enabled for multi-drop (RS 485):

Programming

Note: When serial port settings are changed, a reset of the exchange is required after the changes are sent to the exchange.

Define the RIO Unit as a Device

Every RIO Unit connected to the exchange must have a unique device address. The device address is between 1 – 64, and is determined by the DIP-switches S1 1-6 on the RIO unit. Normally you give the first RIO unit address 1, the second one address 2 and so on, but any address between 1 and 64 can be used.

The device address must also be defined in the software.

• From the AlphaPro main menu, select Exchange & System ➝ Devices. The External Devices window is displayed. The list box will show a list of the 64 possible devices.
• Highlight the device number you have chosen for the RIO unit.
• Select device type and serial port to be used. You may also add a descriptive name (optional).
  • Device Type: Remote I/O
  • Data (ACDP Link): Serial Port 1 to 7

In the External Devices window, the RIO device 1 is defined on serial port 3:

If there are more than one RIO unit, highlight the next device number, and set Device Type to Remote I/O and select the serial port to be used. Continue until all RIO units are defined.

Define the Remote Control Outputs RCO

Each RIO unit has 18 outputs (RCOs). The outputs must be defined in the software. You only need to define the outputs that are to be used. The address is the device number of the RIO unit. In addition the output number must be defined (1 – 18).

• From the AlphaPro main menu, select Exchange & System ➝ RCO and the Remote Control Output Window is displayed.

The list box will show a list of the 500 possible RCO’s. By default logical RCO 1 – 138 are assigned to the internal outputs in the AlphaCom exchange (device 65), but can instead be used for the RIO unit. Or you might choose to start defining new outputs from logical RCO 139.

• Select an unused RCO from the listbox, and set the device number identical to the device number of the RIO unit. The pin number must be in the range of 1 to 18. You can also add a Descriptive Name (optional).

In the Remote Control Output Window the logical RCOs 139 – 148 are assigned to RIO device 1, pin number 1 to 10:

Define the Remote Control Inputs RCI

Each RIO unit has 8 inputs (RCIs). The inputs must be defined in the software. You only need to define the inputs that are to be used. The inputs are identified by the device number of the RIO unit and the input number (1 – 8).

• From the AlphaPro main menu, select Exchange & System ➝ RCI. The Remote Control Inputs window is displayed. The list box will show a list of the 140 possible RCIs. By default logical RCI 1 – 8 are assigned to the internal inputs in the AlphaCom exchange (device 65), but can instead be used for the RIO unit. Or you might choose to start defining new inputs from logical RCI number 9.
• Select an unused RCI from the listbox, and set the device number identical to the device number of the RIO unit. The pin number must be in the range of 1 to 8. You can also add a Descriptive Name (optional). The Remote Control Inputs window below shows logical RCI 9 – 16 are assigned to RIO device 1, pin number 1 to 8:

Assign Functionality to Outputs and Inputs

In general the outputs (RCO) are given the desired functionality in the Event Handler programming in AlphaPro. A wide range of events in the AlphaCom exchange can trigger the RCO.

The inputs (RCI) are given the desired functionality in the RCI programming window. A wide range of commands is available to start actions in the AlphaCom exchange.

Application Example - Door Opening

In this application example the programming for the Door Opening feature is described. During conversation between a Control Room station and a Door Station the Control Room station can press digit 6 to activate an output on the RIO unit. The output activates the door lock.

If the Control Room station is a CRM-IV station, the status of the door (open or closed) can be indicated on an LED in the station. There must be a contact at the door that is connected to the input of the RIO unit.

The example uses:

• Door station number 104 (physical number 4).
• Control room station 112 (physical number 12).
• Logical RCO 139 for door lock.
• Logical RCI 9 for door status indication.

RCO programming

• From the AlphaPro main menu, select Users & Stations.
• Highlight the door station in the list box.
• Go to Events.
• Click + to define a new event.
• Select:

Event Type:	02 Door Opening – During connection
When Change To:	ON or OFF
When Related To:	112
Action Command or RCO:	RCO 139 1/1

By this programming only station 112 can activate the door lock. If “When Related To” is set to All, any station in conversation with the door 104 can activate the door lock by pressing digit 6.

The output will be pulsed for 3,5 seconds when the digit 6 is released. The pulse length can be changed in Exchange & System -> System -> RCO Pulse (Door Open) Time.

RCI programming

• From the AlphaPro main menu, select Exchange & System → RCI.
• Highlight the relevant RCI in the list box and define the action command.

The IND command is used for indication control in the CRM-IV station.

The action: IND 12 5 1 2 ON means: On physical number 12 - key number 5 - red LED - set flashing – ON.

Appendix A - Technical Details

RIO Cable

The drawing below shows the color code for the cable included with the RIO Unit.

LED Indication

The RIO unit is equipped with a Light Emitting Diode LED that shows status information. This information is quite useful for troubleshooting. The table below is valid for RIO software 02.10 and later.

• General status for communication, where red is worse, and green best:

LED Status	Comment
fast blinking red	Power on indication and/or no activity on data line. − After power on reset of RIO. Implies that the software has started and works OK so far. No communication with the exchange, i.e. data line has no activity with any device (which happens when there are no devices on, or the data wires are broken). − After a RESET_DEVICE from the exchange, i.e. device initialization either due to AlphaCom reset, or AlphaCom PONG time-out (2 minutes, this is the worst-case time you have to wait if you power-up a RIO while the exchange is running on AMC older than 07.09 (07.30)). − No polling for more than 15 seconds. I.e. normal operation times out due to no activity on data line. − After missing multiple PINGs from the exchange (5 min. time-out), indicating AlphaCom device handling high-level problem, or no data line activity (RIO does a software controlled hardware reset)
slow blinking red	Some device is being polled, but not this RIO. − The data connection is electrically OK, but the exchange does not know this device, or there has been bad communication with this device for more than 2 minutes. This situation can last for some 40 seconds, and then the exchange re-tries this RIO again.
slow blinking amber	This RIO is being polled by the exchange, but it’s not operational (no RCI/RCO functionality). − This will occur with AMC versions older than 07.09 (07.30) if the RIO does a quick reset. There is hope, as the exchange will initialize the RIO after max. 2 minutes.
slow blinking green	Normal operation mode − After a GET_DEVICE from the exchange, i.e. finalizing of normal initialization from the AlphaCom - After a PING from the AlphaCom, indicating that the communication works OK high-level.

• During normal operation:

Indicate message traffic briefly to give an idea about how many messages are sent, and if transmission has problems (orange flashes when green blink).

LED Status	Comment
slow blink amber	Message in queue to be sent to exchange − Waiting to be polled
steady amber	Message is in being transmitted to the exchange − Select / send /ACK sequence in progress.
steady green	Message received successfully − ACK received
steady red	Message not received/sent successfully − - NAK / timeout received/sent

Even if there is no RCI/RCO activity, the RIO will PING/PONG with the exchange every 40 seconds causing LED flashes in amber.

The ACK/NAK indication is reset by the next poll of this device, normally after 50 ms times the number of devices, sometimes later if there is much message traffic.

• During exceptional hardware states:

Non-operational hardware is indicated using flashing between red and green.

LED Status	Comment
fast red/green	Special TEST mode used to activate watchdog (see description below)
slow red/green	Hardware self-test has detected a problem: - IICB I/O board does not respond, either due to failure, or the power connector is not in place
random red/green/dark	May occur if the processor does not execute a sensible program, i.e. the EPROM is dead or missing. On older software without watchdog, electric noise could make the processor run wild.

Note that also the terminal feature (see Appendix B) is designed to assist installation and maintenance of the multi drop bus, and will present texts indicating the same operational states. The texts will appear every time the LED changes, and also when the “S” (status) command is executed.

Enable Watchdog

Software

Software versions before 2.12 did not have the internal processor watchdog enabled. When changing software from an early version to 2.12 or higher, a cold start procedure to activate the watchdog must be made. See procedure below.

Processor replacement

If the 68HC11 processor must be replaced during service, a cold start procedure to activate the watchdog must be made. See procedure below.

Watchdog Enable Procedure

The processor 68HC11 comes from factory with the internal COP function (watchdog) disabled. It must be enabled in a special test mode:

• Power down the RIO, open it and insert new software or replace the processor.
• Connect the two test pins found close to the processor
• Power up the board. The LED will blink red/green
• Power down the board, and remove test pin connection
• Close the RIO mechanics again. Power up, now in operational mode

The terminal function S (status) will show if the Watchdog is active or not.

Appendix B - RIO Terminal Feature

Introduction

This is an extract from the Application Note “RIO Terminal Feature”.

From version 02.12 the RIO has the possibility to connect a terminal to the 9-pin RS 232 port, when the RIO is connected to an RS 485-multidrop bus via the 15-pin connector.

The interface is fixed to 9600 baud, 8 bits, no parity, 1 stop bit.

Functionality RIO Terminal Feature

The terminal feature is designed to assist installation and maintenance of AlphaCom multidrop bus devices.

== Work with the RIO you are directly connected to, confirming

• DIP-switch settings:
  • You can change the DIP-switch and see the result on-screen immediately.
• RIO operational status:
  • Communication status, and also error counter and traffic counters.
• Watchdog and EEPROM enabled:
  • IICB connection board OK
  • Reset counter plus date/time of last reset.
• RCI configuration:
  • See which pins are monitored by the exchange.
• Dynamic behavior:
  • RCIs are reported.
  • RCOs become set.

Work with the whole bus, monitor by connecting to just one RIO

• Which devices are on the bus:
  • Lists type, software version, and error counters.
• Which devices does the exchange look for on the bus:
  • Have you configured wrong, or are devices missing?
  • Are broadcast messages used?
• All RCI and RCO activity on all RIOs

Log all bus activity over a long period by connecting a PC to one RIO

• Log device resets.
• Log RCI and RCO events.
• Log communication status every hour.
• Log is timestamped with date and time, and each line is identified with node/device number. (Time is received from exchange periodically).

General

The Help Menu

Most of the commands are listed by typing H<return>. The commands are single letter commands, some with additional parameters. It may be necessary to type # before the letter. • Both upper and lowercase letters are accepted. • Always type <return> to execute the command. • Note that you get no echo on the screen when you type. The screen will in most cases show a bus trace, i.e. scrolls slowly, so echoing input will be messed up anyway.

Switch Setting

Switch Setting