GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual
(Version 1.60, May/2017)
PAGE: 37
●
Change Word Order
：
Enable/Disable (Even module only)
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.
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
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.
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
●
Change Word Order
：
Disable
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-7552-B / GW-7552-M and Modbus slave device
exchange data from this starting address.
d.
NO. of Relay/Coil
：
It is data size that the GW-7552-B / GW-7552-M 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
