IFM AL1940 - Acyclic Command Channel

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ifm Device Manual IO-Link Master with Modbus interface CabinetLine 8 Ports IP 20 (AL1940) 05 / 2018
Appendix Modbus
>
Acyclic Command Channel
17311
The following Modbus registers are available for acyclic data transmission:
Register
Contents
Bits 8-15
Bits 0-7
500*
Command Request Channel (→ Request channel (→ p. 85))
0*
Command Response Channel (→ Response channel (→ p. 86))
* ... valid start address for accessing the register area (→ Rules for accessing the Modbus register (→ p. 58))
Legend:
 [Command Request
Channel]
Area for transmission of command request (fieldbus PLC >>>
IO-Link master)
44 bytes
 [Command
Response Channel]
Area for transmission of command response (IO-Link master
>>> fieldbus PLC)
44 bytes