Yokogawa PR300 Power and Energy Meter - Manual (Page 135)

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<Toc> <Ind> <8. PR201 Original Communication Protocol>
IM 77C01E01-10E
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Parameter: Z (Error response)
• Function
Returns an error response.
• Command/response
Number
of bytes
1 2 1 2 2 1 1
Command
element
STX DG Z Station
number
(ADR)
Checksum ETX CR
There is no command data for data reading.
1 2 1 2 2
Response
element
STX DG Z Station
number
(ADR)
ٗٗ
2 1 1
Checksum ETX CR
Number
of bytes
Response data is returned in a 2-byte ASCII character string.
• Example
Reads an error response of PR300 with station number 01.
ᮀᮀ
indicates the checksum
value.
[Command]
[STX]DGZ01 ᮀᮀ [ETX][CR]
Returns a checksum error response for the above command.
[Response]
[STX]DGZ0180 ᮀᮀ [ETX][CR]
Reads an error response by converting hexadecimal data “80” into binary data
“10000000” and then reading the 7th bit (checksum error).
• Bit information for error response
Bit Failure Status
0 Overranged power
1 Undefined
2 Undefined
3 Undefined
4 Undefined
5 Command data format error
6 Overranged command data
7 Checksum error