Energy Meter Manual

8-20
<Toc> <Ind> <8. PR201 Original Communication Protocol>
IM 77C01E01-10E
● Parameter: Z (Error response)
• Function
Returns an error response.
• Command/response
Number
of bytes
121 2
2 11
Command
element
STX DG Z
Station
number
(ADR)
Checksum
ETX CR
There is no command data for data reading.
121 2 2
Response
element
STX DG Z Station
number
(ADR)
ⵧⵧ
211
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. 䊐䊐 indicates the checksum
value.
[Command]
[STX]DGZ01䊐䊐[ETX][CR]
Returns a checksum error response for the above command.
[Response]
[STX]DGZ0180䊐䊐[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