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Data Commands; Installation In Hazardous Locations - VersaMax IC200MDD841 User Manual

Mixed discrete high-speed counter (hsc) module

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VersaMax Mixed Discrete / High-Speed Counter Module
May 2011

Data Commands

Data Commands can be used to temporarily change the counter
parameters listed below. There is no limit to the length of time a
command can be present in the output words. The module acts on a
command only when it detects a change in the command words.
However, these changes are lost when the module is powered down
and when a new configuration is stored from the programmer.
Data Commands can be sent to the module as part of its analog (AQ)
data. When the module is installed in a PLC, the PLC CPU can also
send Data Commands using the COMREQ function.
Load Accumulator
Loads any value within a counter's limits directly into the
Accumulator.
Load High Limit
Sets the High and Low limit to any value in the counter
range.
Load Low Limit
Load Accumulator
Offsets a counter Accumulator by up to +127 or –128
Increment
counts. This can be done at any time, even while the
counter is counting at maximum rate.
Set Counter
(Type A only) Changes the count direction of a type A
Direction
counter.
Load Timebase
Changes the time interval used for the counts/timebase
word data. The range is 10 to 1000mS in 10mS intervals.
Load Home Value
Changes the home value for the Type B2 counter.
Load ON Preset
Sets up the output turn on points within the counter range.
There is one output associated with each counter.
Load OFF Preset
Sets up the output turn off points within the counter range.
Load Preload
Changes the count value loaded into the counter
Accumulator when the Preload input is activated.
Load Stop Mode
Changes a Pulse Train output's deceleration to stop the
(or Resume
Ramp immediately when the Output Enable bit goes Off.
Decelerate Mode)
The Ramp function must be enabled. The same
command can be used to reset the output to Decelerate
mode.
Load
Changes a Pulse Train output's acceleration. The Ramp
Acceleration
function must be enabled. Both acceleration and
deceleration can be selected from the range of 10 p/s
1,000,000 p/s
Load
If the Ramp function is enabled, this command changes a
Deceleration
Pulse Train output's deceleration.
Load Correction
Sets the change (in microseconds) that should be applied
to the duty cycle of a Pulse Train output. The range is 0 to
200 microseconds.
. The default for both is 1,000,000.
2
IC200MDD841

Installation in Hazardous Locations

EQUIPMENT LABELED WITH REFERENCE TO CLASS I,
GROUPS A, B, C & D, DIV. 2 HAZARDOUS LOCATIONS IS
SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C,
D OR NON-HAZARDOUS LOCATIONS ONLY
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF
COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 2;
WARNING - EXPLOSION HAZARD - WHEN IN HAZARDOUS
LOCATIONS, TURN OFF POWER BEFORE REPLACING OR
WIRING MODULES; AND
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT
EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR
THE AREA IS KNOWN TO BE NONHAZARDOUS
to
2
5
GFK-1561H

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