APPENDIX. HOST COMMUNICATION PROTOCOL
IMR02E20-E1
115
Memory area soak time monitor and area soak time become the following data:
When data range is 0 hour 00 minute to 99 hours 59 minutes:
Data range is 0:00 to 99:59, punctuation of time unit is expressed in colon “: (3AH).”
When data range is 0 minute 00 second to 199 minutes 59 seconds:
Data range is 0:00 to 199:59, punctuation of time unit is expressed in colon “: (3AH).”
“0” (without a decimal point) is sent for unused channels and for data that is invalid due
to the function selection.
4.
ETB
Transmission control character indicating the end of the block.
5.
ETX
Transmission control character indicating the end of the text.
6.
BCC
BCC (Block Check Character) detects error by using horizontal parity (even number).
Calculation method of BCC:
Exclusive OR
all data and characters from STX through ETB or
ETX, not including STX.
Example:
STX
M 1 0 1 1 5 0 . 0
ETX BCC
4DH 31H 30H 31H 20H 20H 31H 35H 30H 2EH 30H 03H
BCC = 4DH
31H
30H
31H
20H
20H
31H
35H
30H
2EH
30H
03H = 54H
(
:
Exclusive OR
)
Value of BCC becomes 54H
(4) EOT send (Ending data transmission from the SRZ unit)
In the following cases, the SRZ unit sends EOT to terminate the data link:
When the specified identifier is invalid
When there is an error in the data format
When all the data has been sent
When the module that relates to the identifier is not connected
(5) No response from the SRZ unit
The SRZ unit will not respond if the polling address is not received correctly. It may be necessary for
the host computer to take corrective action such as a time-out.
Hexadecimal numbers
