Rockwell Automation 61C542 Voltage Input module User Manual
Page 37
4Ć19
990
!
1000 ! ******************** INITIALIZATION **********************
1010 !
1020 ! Configure the first three channels using the data
&
! statements at 8000.
1030 !
1100 FOR CHANNEL% = 0 TO 2
1110
!
Reset the configuration register
1120
CNF_COMMAND% = 0000H
1130
!
Wait for the config complete flag to be reset
1140
IF CNF_COMP@ = FALSE THEN GOTO 1180
1150
DELAY 10 TICKS
1160
GOTO 1140
1170
!
Specify the channel to be configured
1180
CNF_CHAN_NUM% = CHANNEL%
1190
!
Specify the max scaling, min scaling, highĆhigh, high,
&
!
low, lowĆlow alarm values
1200
READ CNF_MAX%, CNF_MIN%, CNF_AVE_SAMPLE%, CNF_HH_ALARM%,
&
ăăCNF_H_ALARM%, CNF_L_ALARM%, CNF_LL_ALARM%
1210
! Send the WRITE configuration command that specifies
&
! retaining the old value for the out of range mode and
&
! enabling cycle averaging, disabling square root extraction, enabling
&
! singleĆended inputs and enabling unipolar inputs
&
1230
CNF_COMMAND% = 3200H
1240
!
Wait for the config complete flag to be set
1250
IF CNF_COMP@ = TRUE THEN GOTO 1290
1260
DELAY 10 TICKS
1270
GOTO 1250
1280
!
Check for an error configuring the channel
1290
IF CNF_ERROR@ = TRUE THEN SHUTDOWN@ = TRUE
1300 NEXT CHANNEL%
8000 !
8010 !
ăMax
ĂăMin
Run
High
High
Low
Low
8020 !
Scaling
Scaling
Aver
High
Low
8030 DATA
ă2000,
-100,
20,
1800,
1600,
ă400,
ăă0
8040 DATA
ă3000,
ăăă0,
20,
2500,
2000,
ă500,
ă250
8050 DATA
10000,
ăăă0,
20,
9000,
7500,
2500,
1000
8060 !
9000 !
9010 ! *********************** MAIN LOOP **********************
9990 !
9991 ! If any channels are out of range, then set shutdown flag
9992 !
10000 IF OUT_OF_RANGE% <> 0 THEN SHUTDOWN@ = TRUE
11000 !
11010 ! If tank or startup process or operation process has
&
! high or low alarm, set warning flag
11030 !
11040 IF TANK_H_ALARM@ OR START_H_ALARM@ OR OP_H_ALARM@ OR
&
TANK_L_ALARM@ OR START_L_ALARM@ OR OP_L_ALARM@ THEN & WARNING@ = TRUE
12000 !
12010 ! If tank or startup process or operation process has a
&
! highĆhigh or lowĆlow alarm, set the shutdown flag
12030 !
12040 ĂIF TANK_HH_ALARM@ OR START_HH_ALARM@ OR OP_HH_ALARM@ OR
&
TANK_LL_ALARM@ OR START_LL_ALARM@ OR OP_LL_ALARM@ THEN
&
SHUTDOWN@ = TRUE
13010 !
13020 ! Wait one second then check again
13030 !
13040 DELAY 1 SECONDS
13050 GOTO 10000
Figure 4.12 Ć Sample DCS 5000/AutoMax Voltage Input Application Task (Continued)