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Set the Directory head addresses in D1003—D1006,
ie. A=D20—24, B=D30—34, C=D40—44 & D=D50—54.
|M9038
64 +I I——+————————————————————————————————————————————————[MOV
|PLC
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|POWER|
|—UP
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+————————————————————————————————————————————————[MOV
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+————————————————————————————————————————————————[MOV
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+————————————————————————————————————————————————[MOV
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MONITORING THE STATUS REGISTER
Continously monitor the Status register for the
TC flag(bit 3), ERRor flag(bit 15), network error
flags(bits 4—7) & local comms errors(bits 8—13)
|M9036
85 +I I———————————————————————————————————————————————————[MOV
|PLC
|RUN
|
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SELF CHECK MONITOR (SCM)
If the Polling bit (M102) stops toggling and the
Stop polling bit (M101) is not set, then...
the SCM watch—dog timer (T1) will time—out after
15secs and power—down reset the Modem for 1sec.
In this example PLC output Y50 switches power to
the Modem.
|M102
91 +I I—————————————————————————————————————————————————————————[PLS
|POL
|BIT2
|
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+—————————————————————+—————————————————————+————————————————+——————————————+
| Proj:WATA1SFX
+—————————————————————+—————————————————————+————————————————+——————————————+
| Syst:A2AS
40
H
20
H
30
H
40
H
50
D1000 M100 ]+
COMM— DIAL
AND
REG.
| Type:Ladder
| Page:
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D1003]+
DIR
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A
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ADDR
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D1004]+
DIR
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B
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ADDR
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D1005]+
DIR
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C
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ADDR
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D1006]+
DIR
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D
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ADDR
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K4
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BIT0
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M1
]+
W/DOG |
RESET |
PLS
|
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3
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