Bits / Registers Data Exchange - ICPDAS ET-2268 CR User Manual

ET-2200 Series Ethernet I/O Modules
5.5.5

Bits / Registers Data Exchange

Register Address: Bit Address:
3000 3000 - 3015
< Inquiry for data concentrator >
< Master#1 diagram >
< Master#2 diagram >
Generally, the device cannot exchange the Bit and Register data directly, but this can achieve by
using the shared memory of ET-2200 as a concentrator. As the diagram above, the Modbus
Master#1 writes data 255 (0X00FF) to the shared memory with a Register address 3000. The
Modbus Master#2 reads data from the shared memory with Bit addresses 3015 to 3000 and gets
the result 0000 0000 1111 1111.
The data stored in shared memory can be read with the Bit or Register address.
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