Mitsubishi Electric AJ71C24-S6 User Manual page 130

8. COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
(3) Station number
The station number is set by the station number setting switch on the
front of the AJ71C24. It identify file which AJ71G24 in a station to
(
access.
Station numbers must be in the range of O O H to 1FH (0 to 31) in 2-digit
ASCII (hexadecimal).
POINTS
(1) The station number setting switch is set to a decimal value, but the
station number is specified in hexadecimal. Example: Switch setting
"10" corresponds to station number "OAH" specified in the protocol.
t -
(2) For the global operation, specify station number "FFH". If 0 to 31 (OOH
to IFH) is specified, "Xn2" turns ON at that station number only. For
details, see Section 8.13.
(3) To execute data communications between the computers in the m:n
multi-drop link, set the station number at the computer side in the
range of 128 to
159
(80H to 9FH).
I
In this setting, the station numbers are determined according to the
rule set by the computers.
For details, see Section 6.2.1.
1
Example:
I
Station
No.
0
Station No. 1 Station
No.
2
PC CPU No. FFH PC
CPU
No.
FFH
PC CPU
No.
FFH
Station numbers do not need to be sequential
I -
Station
No.
31
PC CPU
No.
FFH