Linking to Other Systems with FETCH/WRITE
212
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
a) Structure of WRITE Frames
The meaning and values of parameters shown without values in the following table
can be found in the section
“Parameter Values“.
WRITE request frame
WRITE acknowledgment frame
0
System ID
=”S”
0
System ID
=”S”
1
=”5”
1
=”5”
2
Length of header
=16d.
2
Length of header
=16d.
3
ID OP code
=01
3
ID OP code
=01
4
Length OP code
=03
4
Length OP code
=03
5
OP code
=03
5
OP code
=04
6
ORG field
=03
6
Ack field
=0Fh
7
Length ORG field
=08
7
Length ack field
=03
8
ORG ID
8
Error field
=No
9
DBNR
9
Empty field
=FFh
A
Start address
High Byte
A
Length empty field
=07
B
Low Byte
B
C
Length
High Byte
C
D
Low Byte
D free
E
Empty field
=FFh.
E
F
Length empty field
=02
F
Data up to 64 K
Содержание NCM S7
Страница 82: ...SEND RECEIVE Interface in the User Program 82 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...
Страница 91: ...Configuring Communication Connections 91 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...
Страница 196: ...Firmware Loader 196 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...
Страница 210: ...Glossary 210 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...
Страница 216: ...Linking to Other Systems with FETCH WRITE 216 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...
Страница 218: ...Document History 222 SIMATIC NET NCM S7 for Industrial Ethernet C79000 G8976 C129 06 ...