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8 Communications Functions
8 - 12
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
The data received in a response shows the status for coils 0007 to 000D hex. Therefore, the received
data “45 hex = 0100 0101b” can be read, with the status for coil 0007 hex as the LSB, as described in
“Response” on the previous page.
The received data is always transferred in 1-byte (8 bits) format. Bits that lack data are transferred as 0.
If the Read Coil Status function is not executed normally, refer to
8-5-9 Exception Response
on page
8-20.
Reads the contents of consecutive holding registers. From the specified holding register, the specified
number of holding registers can be read.
z
Query
(Example) When the status of 16 coils starting from coil number 0001 hex is read, the order of data is
as shown below. Data 1 is the initial byte data to be sent.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Data 1
0008 hex
0007 hex
0006 hex
0005 hex
0004 hex
0003 hex
0002 hex
0001 hex
Data 2
0010 hex
000F hex
000E hex
000D hex
000C hex
000B hex
000A hex
0009 hex
8-5-2
Read from Holding Register [03 hex]
Example. Reading Latest Trip Data (0012 to 0017 Hex) from Inverter
with Slave Address 1
No.
Field name
Example
[hex]
1
Slave address
*1
01
2
Function code
03
3
Register start address (MSB)
*2
00
4
Register start address (LSB)
*2
11
5
Number of holding registers
(MSB)
00
6
Number of holding registers
(LSB)
06
7
CRC-16 (MSB)
95
8
CRC-16 (LSB)
CD
(Register address) = (Register number)
−
1
6 registers
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 ...