Communications Data; End Code Example - Omron E5CN Manual

SECTION 2 CompoWay/F Communications Procedures

■ Communications Data

Communications Set (monitor)
format values
CompoWay/F 8-digit hexa-
decimal

■ End Code Example

2-4
Negative values
2's complement Decimal point is removed and the result is converted
to hexadecimal.
Example conversion: 105.0 → 1050 → H'0000041A
The following examples show the end code when a command did not
end normally.
Example 1) Illegal Sub-address, No SID, and No Command Text
Command
Node number Sub-address
STX 0
Response
Node number Sub-address End code
STX 0
End code is "16" (sub-address error).
The sub-address error code is used because the sub-address error has
a higher error detection priority than the format error.
Example 2) No Command Text
Command
Node number Sub-address
STX 0
Response
Node number Sub-address End code
STX 0
The end code is "14" (format error).
Example 3) No Node Number Provided
Command
BCC
STX EXT
The node number is lacking one character.
Response
There is no response.
Decimal point
BCC
A EXT
BCC
A 1 6 EXT
SID BCC
0 0 EXT
BCC
0 1 4 EXT