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EMERSON A6824R 9199-00098-13 Modbus communication (4HP)

The A6824 / A6824R interface card is a component of the A6000 Machine Monitoring System.

The card serves the periodic recording of monitor data. The captured data are transmitted via

the interfaces Modbus RTU or Modbus over TCP.

The card has 6 RS 485 bus lines. Each of these lines can serve up to 8 A6000 monitors. By

means of the configuration, the monitors can be assigned to the bus lines of the interface card.

For secure use of the monitor, observe the direction for use “Interface card A6824 / A6824R” (order number: 6110−90090). You can find this direction on the configuration software CD as pdf−data file. Amongst others, it contains useful informations for configuration and use of the A6824 / A6824R.

To ensure the safe operation of the monitor and to permit setting of all functions, it is indispensable to use only the latest version of configuration software (version 2.08 or newer) and operating manual.

The use of old operating manuals or configuration programs out of date may lead to malfunctions or limitations of the measuring functions.

Installation and Mounting

A prepared 3U slot in a 19” rack, or other Intermas−compatible enclosure, is required for mounting the A6824 / A6824R gateway.

For use of the A6824R the slot must be fitted with a 30−pin plug connector (DIN 41612/IEC60603 design C/3). The pin assignment is listed in the following table.

To activate the bus terminator and to place the lines “A” and “B” on the references, plug the jumpers as shown in Fig. a). Fig. b) shows the jumper position for deactivated bus termination and open references.

• Jumper 1−2 closed: Line “B” of the bus is connected to ground via a pull−down resistor

• Jumper 3−4 closed: 120 Ohm resistance between “A” and “B”

• Jumper 5−6 closed: Line “A” of the bus connected to +5 V via pull−up resistor

Modbus RTU Interface

The Modbus RTU protocol is output via an additional RS 485 interface. In the following figures,the jumpers for the Modbus RTU interface is marked with a white frame.

EMERSON A6824R 9199-00098-13 Modbus communication (4HP)

Installation

1. Check the slot wiring prior to installing the monitor.

2. Push the gateway A6824 / A6824R into the prepared slot and press it with light pressure

into the plug connector.

3. Hand tighten the two anchoring screws on the front panel to secure the gateway.

EMERSON A6824R 9199-00098-13 Modbus communication (4HP)

EMERSON A6824R 9199-00098-13 Modbus communication (4HP)