ICP DAS USA GW-7553-B User Manual page 39

C. Input Relay/Coil module parameters：
Modbus Slave Device ID (M)：0~247
●
Start Address(M)：0~65535
●
NO. of Relay/Coil(M)：8*(n-1)+1 ~ 8*n Bits
●
n=Module size/Byte
Module Type(M)：Read DI/DO
●
TCP_Connect_Index(T)(M)：1~8
●
D. Input Register module parameters：
Modbus Slave Device ID (M)：0~247
●
Start Address(M)：0~65535
●
Module Type(M)：Read AI/AO
●
Change Word Order：Enable/Disable (Even module only)
●
TCP_Connect_Index(T)(M)：1~8
●
Example 1:
If the user wants to read a Modbus digital input module (DI module), Device ID is
1, data address is 10010~10019, and data count is 10 via the first TCP connection.
In this case, the user can select an "Input Relay/Coil=> 2 Bytes module", module
parameters are shown in the below:
Input Relay/Coil module parameters：
Modbus Slave Device ID(M)：1
●
Start Address(M)：9
●
NO. Of Relay/Coil(M)：10
●
Module Type(M)：Read DI
●
TCP_Connect_Index(T)(M)：1
●
Example 2:
If the user wants to write a Modbus analog output module (AO module), Device
ID is 2, data address is 40001~ 40004 and data count is 4 via the second TCP
connection.
In this case, the user can select an "Output Register => 4 Words module", module
parameters are shown in the below:
GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
PAGE: 39