B&B Electronics GW-7553 - Manual - Manual (Page 33)

GW-7553 PROFIBUS/Modbus TCP Gateway User Manual (Version 1.00, Dec/2008) PAGE: 33
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:
Output Register module parameters：
●
Modbus Slave Device ID(M)：2
●
Start Address(M)：0
●
TCP_Connect_Index(T)(M)：2
PS：
a. Relay/Coil module is digital module (DI/DO module), the unit is Byte;
Register module is analog module (AI/AO module), the unit is Word.
b. Modbus Slave Device ID：It is a Modbus Slave device address.
c. Start Address：The GW-7553 and Modbus Slave device exchange data
from this starting address.
d. NO. of Relay/Coil：It is data size that the GW-7553 and Modbus Slave
device exchange.
e. Module type：The user can select data type for data exchange by this
setting.
„ Write DO(WDO)-- Write Digital Output
„ Write AO(WAO)-- Write Analog Output
„ Read DI(RDI)- Read Digital Input
„ Read DO(RDO)- Read Digital Output
„ Read AI(RAI)-Read Analog Input
„ Read AO(RAO)-Read Analog Output
f. TCP_Connect_Index：The user can select TCP connection of the module.
The module will transmit and receive data from this connection.