Momentum Modbus Plus 170 PNT Series Especificações descarregar pdf (Página 14)

4/11Schneider Electric

Modbus Plus can be used as the fieldbus for a distributed I/O network under the control of a Quantum CPU. A Modbus

Plus master needs to reside at the head end of the network (as either a 140 NOM 21p module or Quantum CPU with a

built-in Modbus Plus interface). A 140 CRA 211 pp module must reside in each distributed I/O drop on the network. A

CRA module acts as both a distributed I/O adapter and a power supply for the drop; no additional power supply modules

are required. Each DIO drop can address up to 30 input words and 32 output words.

A single or redundant cable topology may be employed in the distributed I/O system. Depending on your system's

requirements, one of the following module combinations can be used to set up a Modbus Plus-based DIO system:

The Modbus Plus 140 NOMpp 00 modules at the end of the network comprise on the front panel:

1 Model number and color code

2 LED Status indicators comprising:

- Ready (green)

- Fault (red)

- Pwr ok (green)

- Modbus + (green)

- Error A (red)

- Error B (red)

3 Removable, hinged door with customer identification

label

4 Microswitch

5 Modbus port

6 Modbus Plus

Using Modbus Plus for distributed I/O

At the head At the drop Type of system

CPU with MBP or

140 NOM 211 00

140 CRA 211 10 Single cable with a 115/230 V power source at the drop

CPU with MBP or

140 NOM 211 00

140 CRA 211 20 Single cable with c 24 V power source at the drop

140 NOM 212 00 140CRA21110 Redundant cable with a 115/230 V power source at the drop

140 NOM 212 00 140CRA21120 Redundant cable with c 24 V power source at the drop

Description

Quantum automation platform 4

I/O architectures

Distributed I/O, Modbus Plus

Description

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Momentum Modbus Plus 170 PNT Series Especificações Página 14