Command 66 - Read K Memory; Command 67 - Read Wy Memory; C-33 Command 66 — Request; C-34 Command 66 — Response - Siemens SIMATIC TI500 User Manual

Command 66 —
Read K Memory
Command 67 —
Read WY Memory
TIWAY I Gateway User Manual
This command permits the collection of constant (K) memory. The formats of
the command and response are as follows.
Request: aa 42 llll nnnn XXXX
Figure C-33 Command 66 — Request
Response: aa 42 bb dddd . . . XXXX
Figure C-34 Command 66 — Response
This command permits the collection of Word Output memory. The formats
of the command and response are as follows.
Request: aa 43 llll nnnn XXXX
Figure C-35 Command 67 — Request
Response: aa 43 bb dddd . . . XXXX
Figure C-36 Command 67 — Response
Checksum (XXXX)
Number of locations to collect (nnnn)
Starting location to collect from (llll)
Command 66 (42 hex)
Address (aa)
Checksum (XXXX)
K-memory data
Number of data bytes to follow (bb)
Command 66 (42 hex)
PLC TIWAY network address (aa)
Checksum (XXXX)
Number of locations to collect (nnnn)
Starting location to collect from (llll)
Command 67 (43 hex)
Address (aa)
Checksum (XXXX)
WY memory data
Number of data bytes to follow (bb)
Command 67 (43 hex)
PLC TIWAY network address (aa)
Modbus Commands
I000000
I000000
I000000
I000000
C-27