Communications Data; End Code Example - Omron E5CN-HT Communications 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
However, when reading or writing time data in
hh.mm, mm.ss, or dd.hh, BCD data is used (the
same format as the display).
Example: The data is H'00009959 for a display of
99.59.
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.
Decimal point
BCC
A EXT
BCC
A 1 6 EXT
SID BCC
0 0 EXT
BCC
0 1 4 EXT