![background image](http://html.mh-extra.com/html/omron/sysdrive-mx2-series/sysdrive-mx2-series_user-manual_741918431.webp)
8 - 19
8 Communications Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
8-
5 Explan
atio
n o
f Each
Fu
nctio
n
C
ode
8
8-5
-8 Rea
d/W
rite from/to Multiple Holding Reg-
isters [1
7h]
Reads data from and writes data to consecutive multiple holding registers in a continuous manner.
Because the holding registers 0001 to 0002 hex for the Output Frequency Setting/Monitor (F001) have
a data resolution of 0.01 s, to set 50.00 Hz, set the written data to 5000 (0000 1388 hex).
Similarly, the holding registers for the Output Frequency Monitor (d001) are 1001 to 1002 hex.
z
Query
z
Response
*1. Broadcasting cannot be performed.
*2. Note that the holding register start address is 1 less than the register number: Register address = Register
number - 1.
If the Read/Write from/to Multiple Holding Registers function is not executed normally, refer to
8-5-9
Exception Response
on page 8-20.
8-5-8
Read/Write from/to Multiple Holding Registers [17h]
Example. Writing 50.00 Hz to Output Frequency Setting/Monitor
(F001) and Reading from Output Frequency Monitor (d001) Value
from Inverter with Slave Address 1
No.
Field name
Example
[hex]
1
Slave address
*1
01
2
Function code
17
3
Read register start address (MSB)
*2
10
4
Read register start address (LSB)
*2
00
5
Number of read registers (MSB)
00
6
Number of read registers (LSB)
02
7
Write register start address (MSB)
*2
00
8
Write register start address (LSB)
*2
00
9
Number of write registers (MSB)
00
10
Number of write registers (LSB)
02
11
Number of written data bytes n
04
12
Written data 1 (MSB)
00
13
Written data 1 (LSB)
00
14
Written data 2 (MSB)
13
15
Written data 2 (LSB)
88
16
CRC-16 (MSB)
F4
17
CRC-16 (LSB)
86
No.
Field name
Example
[hex]
1
Slave address
*1
01
2
Function code
17
3
Number of read data bytes n
04
4
Read data 1 (MSB)
00
5
Read data 1 (LSB)
00
6
Read data 2 (MSB)
13
7
Read data 2 (LSB)
88
8
CRC-16 (MSB)
F4
9
CRC-16 (LSB)
71
(Register address) = (Register number)
−
1
0000 1388 hex
→
5000 dec
→
50.00 Hz
(Register address) = (Register number)
−
1
0000 1388 hex
→
5000 dec
→
50.00 Hz
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...