4-162
4-4 Communication Function
4
Functions
Explanation of Each Function Code
<Reading Coil Status [01h]>
Reads out the coil status (ON/OFF).
(Example)
Read multi-function input terminals S1 to S6 on the Inverter with slave address 8.
Refer to the following table for the multi-function input terminal status.
The data received as the response shows the status of coils 7 to 14. The data received here, "17h
= 00010111b", should be read with coil 7 as LSB, as follows:
If the read coil exceeds the defined coil range in the final coil data, such coil data is regarded as "0"
and sent.
If the coil status reading command has not been performed normally, refer to the "Exception
Response" section.
Multi-function
input terminals
S1
S2
S3
S4
S5
S6
Coils 13 and 14 are OFF.
Coil No.
7
8
9
10
11
12
Terminal status
ON
ON
ON
OFF
ON
OFF
Query
Response
No.
Field name
Example
(HEX)
No.
Field name
Example
(HEX)
1
Slave address
*1
08
1
Slave address
08
2
Function code
01
2
Function code
01
3
Coil start number (MSB)
*2
00
3
Number of data bytes
01
4
Coil start number (LSB)
*2
06
4
Coil data
*4
17
5
Number of coils (MSB)
*3
00
5
CRC-16 (MSB)
12
6
Number of coils (LSB)
*3
06
6
CRC-16 (LSB)
1A
7
CRC-16 (MSB)
5C
*4.
Transfers data by the number of data bytes.
8
CRC-16 (LSB)
90
*1. Broadcasting cannot be performed.
*2. Note that the start number is reduced by 1.
*3. When specifying the value of 0 or over 32 for the number of
reading coils, the error code "3h" is replied.
Coil No.
14
13
12
11
10
9
8
7
Coil status
OFF
OFF
OFF
ON
OFF
ON
ON
ON
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
Page 48: ......
Page 108: ......
Page 324: ......
Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Page 348: ......
Page 392: ......
Page 436: ......
Page 437: ...Index ...
Page 441: ......