Omron 3G3RX - Page 291

4-172
4-4 Communication Function
4
Functions
<Writing Into Multiple Coils [0Fh]>
Rewrites consecutive multiple coils.
(Example)
Change the status of multi-function input terminals 1 to 6 on the Inverter with slave address 5.
Set the multi-function input terminals as shown in the following table.
If writing into multiple coils cannot be performed normally, refer to the "Exception Response" section.
Multi-function
input terminals
1 2 3 4 5 6
Coil No. 7 8 9 101112
Terminal status ON ON ON OFF ON OFF
Query Response
No. Field name
Example
(HEX)
No. Field name
Example
(HEX)
1 Slave address
*1
05 1 Slave address 05
2 Function code 0F 2 Function code 0F
3 Coil start number (MSB)
*2
00 3 Coil start number (MSB) 00
4 Coil start number (LSB)
*2
06 4 Coil start number (LSB) 06
5 Number of coils (MSB) 00 5 Number of coils (MSB) 00
6 Number of coils (LSB) 06 6 Number of coils (LSB) 06
7 Number of bytes
*3
02 7 CRC-16 (MSB) 34
8 Change data (MSB)
*3
17 8 CRC-16 (LSB) 4C
9 Change data (LSB)
*3
00
10 CRC-16 (MSB) DB
11 CRC-16 (LSB) 3E
*1. There is no response for broadcasting.
*2. Note that the start number is reduced by 1.
*3. Since the change data comprises of both MSB and LSB as a set, make the byte to be an even
number by adding 1, even if the byte that actually needs to be changed is an odd number.