Structure of Data Bytes 0–7 (continued)
Byte 3 = ValueCode (continued)
Bytes 4–7 = Value for ValueCode
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte Value
Decimal Description
x
x
x
x
x
x
x
x
x
Byte 6 and 7 for INTEGER values (Byte 7 is always LSB) Byte
4–7 for FLOATING point values. Conversion follows IEE754.
CAN Communication Command Examples
If a master sends a slave a command (request), the slave checks its own status and reacts as follows:
• If the request is free of errors, the slave (PICO controller) immediately begins to process the command and sends a
response to the master (PLC/PC).
• If the slave detects an error, the command is not processed and the slave sends a response, with the respective error
flag, to the master. The slave cannot process the command until the error is corrected and a new command with new
TAN is issued.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte Value
Decimal
Naming: Controller Display/TXT file (Type of Value)
0
0
0
1
0
0
0
1
17
Not used
—
—
—
—
—
—
—
—
—
Not used
0
0
0
1
0
1
0
1
21
Pulse Time/dosing time (Line Value)
0
0
0
1
0
1
1
0
22
Cycle/- (Line Value)
—
—
—
—
—
—
—
—
—
Not used
1
1
1
1
1
1
1
1
255
Not used
1FF xx
xx xx xx xx xx xx xx Request explanation
5FF xx
xx xx xx xx xx xx xx Response explanation
11-bit Identifier
(Hex)
Data Bytes
0–7 (Hex)
High | Low
Nibble
PICO Controller 2+2-XCH-V3
24
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