Chapter 8. Communication Functions
8-18
(4)
GM7U main unit response format (NAK response)
Format name Header
Station
No.
Command
Command
type
Error code
(HEX 2 byte)
Tail
Frame check
Frame (Ex.)
ENQ
H10
W(w)
SB
H1132
EOT
BCC
ASCII value
H05
H3130
H57(77)
H5342
H31313332
H03
Item
Description
Frame check
(BCC)
When the command is lowercase(r), only one lower byte of the value resulted by adding 1 Byte
each to the ASCII values from NAK to ETX is converted into ASCII and added to BCC, and then
sent.
Error code
Hex and 2 bytes (ASCII code, 4 bytes) indicate error type. For the details, see 8.1.8 Error codes.
(5)
Example
This example assumes that HAA15056 is written in %QD0.0.0 at station no.1
①
PC request format (PC
→
GM7U main unit)
Format
name
Header
Station
No.
Command
Command
type
Variable
length
Variable
name
No. of
data
Data
Tail
Frame
check
Frame
(Ex.) ENQ H01
w SB H08
%QD0.0.0
H01 HAA15056F EOT BCC
ASCII
value H05 H3031 H77 H5342
H3038
H254442302
E302E30
H3031
H41413135
30353646
H04
②
For ACK response after execution of command (PC
←
GM7U main unit)
Format name
Header Station No. Command
Command type
Tail
Frame check
Frame (Ex.)
ACK
H01
W
SB
ETX
BCC
ASCII
value H06 H3031 H77
H5342
H03
③
For NAK response after execution of command (PC
←
GM7U main unit)
Format name
Header Station No. Command Command type
Error code
Tail
Frame check
Frame (Ex.)
NAK
01
W
SB
Error code (2)
ETX BCC
ASCII
value H15 H3031 H77 H5342 Error
code
(4)
H03
Summary of Contents for GLOFA G7M-DR20U
Page 28: ...Chapter 4 Names of Parts 4 3 2 G7M DRT60U N 3 G7M DT60U N 4 G7M DT60U P...
Page 29: ...Chapter 4 Names of Parts 4 4 5 G7M DR60U DC 6 G7M DRT60U N DC 7 G7M DT60U N DC...
Page 31: ...Chapter 4 Names of Parts 4 6 3 G7M DT40U N 4 G7M DT40U P 5 G7M DR40U DC...
Page 32: ...Chapter 4 Names of Parts 4 7 6 G7M DRT40U N DC 7 G7M DT40U N DC 8 G7M DT40U P DC...
Page 33: ...Chapter 4 Names of Parts 4 8 4 1 3 30 point main unit 1 G7M DR30U 2 G7M DRT30U N 3 G7M DT30U N...
Page 34: ...Chapter 4 Names of Parts 4 9 4 G7M DT30U P 5 G7M DR30U DC 6 G7M DRT30U N DC...
Page 36: ...Chapter 4 Names of Parts 4 11 2 G7M DRT20U N 3 G7M DT20U N 4 G7M DT20U P...
Page 37: ...Chapter 4 Names of Parts 4 12 5 G7M DR20U DC 6 G7M DRT20U N DC 7 G7M DT20U N DC...
Page 38: ...Chapter 4 Names of Parts 4 13 8 G7M DT20U P DC...
Page 159: ...Chapter 7 Usage of Various Functions 7 52 c Program...
Page 183: ...Chapter 7 Usage of Various Functions 7 76 c Program...
Page 253: ...Chapter 8 Communication Functions 8 27 b When uses Ch 1 Built in RS 485...
Page 356: ...Appendix 1 System Definitions App1 9 6 Position Parameter...
Page 357: ...Appendix 1 System Definitions App1 10 7 High Speed Counter Parameter...