VIPA CP 240 RS232, Manual

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Manual VIPA System 200V Chapter 4 CP 240 - serial
HB97E - CP - Rev. 11/30 4-15
Sample input message
Byte
xx
Error code
3
00
00
Reaction
message
flag
0
1
2
00
Byte
00
00
Message
identifier 0
1
E
X Input command
Data type 2
3
xx
xx
Parameter 1
Destination 4
5
yy
yy Parameter 2
Quantity 6
7
zz
zz
Parameter 3
Coordinnation flag 8
9
aa
bb
Data
4
-
N
xy
Normal message Reaction message
with N = 4 ... 127
When the data exceeds 128Byte, additional messages
will be sent.
Structure of additional messages
Byte
xx
Error code
3
FF
00
Flag for next
reaction
message
0
1
2
00
Byte
FF
00
Flag for
next message
0
1
E
X
Input command
data type 2
3
aa
bb
Data
4
-
N
xy
Next message Next reaction message
with N = 4 ... 127
The coordination flag is set in the partner PLC in active-mode when a
message is being received. This occurs for input as well as for output
commands. When the coordination flag has been set and a message with
this flag is received, then the respective data is not accepted (or trans-
ferred) and a reject message is sent (error code 32h). In this case the user
has to reset the coordination flag in the partner PLC.
Structure of the
input message
Coordination flags
Active partner Passive partner
Message header
Input
Flags
as of flag byte 16
32 flag bytes
coordination
flags MB 6.4
End of message
+ Block Check Cha
Reaction message
+ Data
MB16
MB17
.
.
.
.
.
.
MB47
End of message
+ Block Check Cha
STX
DLE
00
00
E
M
00
10
00
20
06
04
DLE
ETX
BCC
DLE
STX
DLE
00
00
00
00
AB
CD
EF
00
01
02
.
.
FF
DLE
ETX
BCC
DLE