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ICS Regent +Plus

PD-7009

Industrial Control Services (Issue 1) 1

I/O Transceiver Modules

I/O XCVR

(T7310)

Issue 1, September, 04

I/O transceiver modules provide an interface between the

processor modules in the controller chassis and the I/O modules in

the I/O chassis. Three I/O transceiver modules are installed in the

three left slots of each I/O chassis.

Features

• Three modules per I/O chassis for triple redundant operation.

• Interfaces processor modules to I/O modules.

• Hot replaceable.

• Front panel indicators on each module show active and fault

status.

• TÜV certified for safety, Risk Class 5.

I/O transceiver modules are triple redundant and can be removed

and replaced without interrupting system operation.

Module Operation

A block diagram of a typical I/O transceiver module is shown in

Figure 1.

Each I/O transceiver module communicates with one of the three

processor modules in the controller assembly. During I/O

Safetybus communications, the control logic on the I/O transceiver

module reads the I/O chassis’ identification code from the I/O

commands and compares them to the chassis’ identification switch

settings. Appropriately addressed I/O commands are directed

along the chassis’ backplane Safetybus to the I/O modules.

Summary of content (6 pages)

PAGE 1
ICS Regent +Plus ® PD-7009 I/O Transceiver Modules I/O XCVR (T7310) Issue 1, September, 04 I/O transceiver modules provide an interface between the processor modules in the controller chassis and the I/O modules in the I/O chassis. Three I/O transceiver modules are installed in the three left slots of each I/O chassis. Features • Three modules per I/O chassis for triple redundant operation. • Interfaces processor modules to I/O modules. • Hot replaceable.
PAGE 2
I/O Transceiver Modules (T7310) Figure 1. Block Diagram of I/O Transceiver Module. I/O module responses are buffered and transmitted back along the chassis’ backplane Safetybus to the I/O transceiver, and from the I/O transceiver along the I/O Safetybus cable to the processor modules. Triplicated power is cabled into the I/O chassis and distributed to the I/O transceiver modules. Each I/O transceiver module receives power from one of the three I/O power supplies.
PAGE 3
I/O Transceiver Modules (T7310) Testing and Diagnostics Loopback tests, periodically sent from the processor modules, are used to test the health of the I/O transceiver modules. All detected failures produce an I/O module error indication on the processor modules and a module fault indication on the I/O transceiver module. Front Panel Indicators Figure 2 shows the physical features of the I/O transceiver modules. The front panel of each module contains active and fault status indicators.
PAGE 4
I/O Transceiver Modules (T7310) Figure 2. I/O Transceiver Module.
PAGE 5
I/O Transceiver Modules (T7310) Maintenance No periodic maintenance or calibration is required for I/O transceiver modules. There are no user replaceable parts inside these modules. Safety Considerations The I/O transceiver modules are TÜV certified for Risk Class 5 safety critical applications.
PAGE 6
I/O Transceiver Modules (T7310) Electromagnetic Interference • • • • • IEC 801 Part 2 - Electrostatic Discharges IEC 801 Part 3 - Radiated Electromagnetic Fields IEC 801 Part 4 - Transients and Bursts IEC 801 Part 5 - Surge Immunity ANSI/IEEE C37.90 - Surge Withstand Capability Safety Dimensions Height: Width: Depth: 6 Level 3: Contact discharge of 6 kV Level 3: 10 V/M, 27 MHz 500 MHz Level 4: 2 kV, 2.5 kHz for t = 60 sec Level 3: 2 kV 2.