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2 modbus mode, Modbus mode – B&B Electronics ZZ24D-NA(NB,NC,ND)-SR - Manual User Manual

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Product Introduction

Manual Documentation Number: pn7515_ZlinxIO-0712m

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Rules for Module Compatibility

The following rules of modules compatibility to run in Peer-to-Peer mode should be observed:

 Same number of Expansion Modules.

 Identical Radio units (in Base Modules).

 Complimentary Expansion Modules.

 Channel Number, Network ID, and Peer-to-Peer address must be the same for both Peer-to-Peer Master and Peer-

to-Peer Slave to communicate with a Peer-to-Peer Slave.

Figure 2

Peer-to-Peer Mode

2.2.2 Modbus Mode

In Modbus mode standard RTU Modbus messages can be sent and received between a Modbus radio modem with attached
Modbus device (being Master) and a Zlinx Wireless I/O system (being Slave). Data written to output addresses in the Zlinx
Wireless I/O Modbus map result in signals appearing on its outputs. Signals connected to Zlinx Wireless I/O inputs are
converted and stored in Modbus input memory locations and then sent across the link as Modbus messages to the Modbus
radio modem.

Figure 3

Modbus Mode