User`s manual

Software Configuration Examples
02/2005 31
9 Configuration for: Holding Registers / Response.
Click on the left-hand side on the relevant function and you get the windows on
the right.
Result: All values are displayed in hexadecimal (when changing the values you
can enter in decimal and it will be automatically changed into hexadecimal).
There are 5 sub menus of the response:
1. Slave address
Default is the Modbus address of the MC32 (decimal 32 = 20 hex)
2. Function
Command 03 (holding registers)!
3. Byte count
Number of bytes (see query): 14 words * 2 = 28 bytes (1C hex)
4. Data length is 5 bytes (see 3)
Data location is 12 (0C hex), because "Read input status" starts at 7 and
needs 5 bytes
5. Checksum
Do not alter
Step Action
1
3
4
5
2
Response
Read Holding Register