User guide

48232-EN/4
Momentum automation platform 0
Modbus Plus communication adapters
Each 170 PNT/NEF communication module comprises :
1 Three indicator lights (LEDs) :
- MB + ACT indicator light (green) : module powered up or communicating.
- ERR A indicator light (red) : communication error network A.
- ERR B indicator light (red) : communication error network B.
(for redundant model).
2 A 9-way male SUB-D connector for connecting to the Modbus Plus network.
3 A 9-way male SUB-D connector for a redundant Modbus Plus network.
4 A slot for an identification label (supplied with all I/O sub-bases).
5 Two switches for coding the slave address on the bus.
Description
31 2
45
Characteristics
Type of module 170 PNT 110 20/160 20 170 NEF 110 21/160 21
Master PLC on the network
Quantum, Premium Compact 984
Structure Type
Industrial
Topology Multi-drop, devices connected using extension cable or tap-off cable
Length
5,000 m (6000 ft) maximum with repeater
Access method
Token bus
Transmission Bit rate
1Mbps
Medium
Twisted pairs
Data Format
IEC Data format 984 Data Format
Number of Momentum devices Per segment
31 connection points per segment 31 connection points per segment
Maximum
63 for all segments 97 for all segments
Power source
Power supply on-board the I/O base
Behaviour in the event of a
communication error
Discrete I/O : forcing to state 0
Analogue I/O : configurable (maintain value, fallback to 0 or full scale value)
Services
Configuration : Peer cop and MSTR function block, “peer-to-peer” mode
Agency approvals
UL, CE, CSA, FM Class I, Div. II
Description,
characteristics