BusWorks® Model 989EN U
ser’s Manual Modbus TCP/IP Digital I/O & Counters
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Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:
25
Problem:
Configure all counter channels to count up, on a falling edge, with
last count restore, a momentary alarm, and a start value of 1048592.
Solution:
Web Interface:
1.
In the Counter Configuration Page, for the first counter, locate
the Counter Enable option
, and select “Enabled”.
2.
For the Count Direction, select ”Up”.
3.
For the Edge Detection option
, select “Negative”.
4.
For the Start-Up Mode option
, select “Last Count”.
5.
For the Alarm Mode
, select “Enabled”
6.
For the Termination Mode select
“Rollover”
7.
Type in “1048592” in the “Pre-Load Value” Edit Box.
8.
Click on the “Submit” button” at the bottom.
9.
Repeat Steps 1-8 for the remaining channels.
Modbus:
1.
To enable all counters, write 00FFH to register 40010.
2.
To configure the counters
for “Up” counting, write 0000H to
register 40013.
3.
To configure the counters
for “Negative” edge counting, write
0000H to register 40012.
4.
To configure the counters
for “Last Count” restore, write
0000H to register 40011.
5.
To enable counter “Alarms”, write 00FFH to register 40015.
6.
To configure the counters for “Rollover” alarms, write 0000H to
register 40014
7.
Set the Pre-Load Value by writing 0010H to registers 40016-
40031.
Problem:
Configure all counter channels to count down, on a falling edge,
with Pre-Load Value start-up, a latching alarm, and a start value of 1,000.
Solution:
Web Interface:
1.
In the Counter Configuration Page, for the first counter, locate
the Counter Enable
option, and select “Enabled”.
2.
For the Count Direction option
, select “Down”.
3.
For the Edge Detection option
, select “Negative”.
4.
For the Start-Up Mode,
select “Start at Pre-Load”.
5.
For the Alarm Mode, select “Enabled”.
6.
For the Termination Mode, select “Stop and Hold”.
7.
Type in “1000” in the “Pre-Load Value” Edit Box
8.
Click on the “Submit Changes” box at the bottom.
9.
Repeat Steps 1-8 for the remaining channels.
Modbus:
1.
To enable all the counters, write 00FFH to register 40010.
2.
To configure the counters for “Down” counting”, write 00FFH to
register 40013.
3.
To configure the counters for
“Negative” edge counting, write
0000H to register 40012.
4.
To configure the counters for “Pre-Load” start-up, write 00FFH
to register 40011.
5.
To enable the counter “Alarms”, write 00FFH to register 40015
6.
To enable the Latching Alarm, write 00FFH to register 40014
7.
To set the
“Pre-Load Value”, write 03E8H to registers 40017,
40019, 40021, 40023, 40025, 40027, 40029, 40031, and
40033.
WEB BROWSER
Counter Configuration
Page
Note: Counters can be
configured through the
webpage, or via the Modbus
registers.
