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2 Simple Application Controllers
The Command String 7
7 - 8
7.3.4 Station Number
The personal computer and
α
2 (AL2-14MR-*, AL2-24MR-*) Series Controller follow as a
master/slave relationship. All communication is initiated from the personal computer.
The station number set in the controller must match the station number in the command string.
If the station number conflict, then a reply message will not be sent from the controller.
The
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2 (AL2-14MR-*, AL2-24MR-*) Series Controller Version 1.00 is equipped with an RS-
232C interface, thus a 1:1 relationship can be achieved. A maximum of 00-0F(hex) can be set
for the controller.
7.3.5 Command
The command defines if the type of transmission will be a Read/Write Command or a Remote
Run/Stop command.
Note:
*1 The run/stop operation via dedicated protocol follows format B. However, number of
devices, device number and device code is not used as it is replaced by either of the
following:
Refer to section 7.6.4 for detailed information concerning the command structure.
*2 Ver. 2.20 or later
*3 Ver. 3.00 or later
Table 7.6: Instruction Command Setting
Command
Command Code
Number (Hex)
Read 00H
Write 01H
Run/Stop
*1
10H
RTC Read
*2
20H
RTC Write
*2
21H
Display Read
*3
30H
Table 7.7: RUN/STOP command code
Operation Hex Code
RUN 01H
STOP 00H
Computer
RS-232C
AL2-GSM-CAB
RS-232C Interface
Station No. 00