ABB RELION REX640 Technical Manual page 282

Basic functions
Up-down counter
Each rising edge of the UP_CNT input increments the counter value CNT_VAL by one
and each rising edge of the DOWN_CNT input decrements the CNT_VAL by one. If
there is a rising edge at both the inputs UP_CNT and DOWN_CNT, the counter value
CNT_VAL is unchanged. The CNT_VAL is available in the monitored data view.
The counter value CNT_VAL is stored in a nonvolatile memory. The range of the
counter is 0...+2147483647. The count of CNT_VAL saturates at the final value of
2147483647, that is, no further increment is possible.
The value of the setting
either when the LOAD input is set to "True" or when the
"Load" in the LHMI. Until the LOAD input is "True", it prevents all further counting.
The function also provides status outputs UPCNT_STS and DNCNT_STS. The
UPCNT_STS is set to "True" when the CNT_VAL is greater than or equal to the setting
Counter load value. DNCNT_STS is set to "True" when the CNT_VAL is zero.
The RESET input is used for resetting the function. When this input is set to "True"
or when
3.20.18.5 Signals
Table 270: UDFCNT Input signals
Name
UP_CNT
DOWN_CNT
RESET
LOAD
Table 271: UDFCNT Output signals
Name
UPCNT_STS
DNCNT_STS
3.20.18.6 Settings
Table 272: UDFCNT Non group settings (Basic)
Parameter Values (Range)
Operation
1=on
5=off
Counter load value 0...2147483647
Reset counter
0=Cancel
Table continues on the next page
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Counter load value is loaded into counter value CNT_VAL
Reset counter is set to "reset", the CNT_VAL is forced to zero.
Type
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
Type
BOOLEAN
BOOLEAN
Unit Step
1
Load Counter is set to
Default
0=False
0=False
0=False
0=False
Description
Status of the up counting
Status of the down counting
Default Description
Operation Off / On
1=on
10000 Preset counter value
Resets counter value
0=Cancel
1MRS759142 F
Description
Input for up counting
Input for down count-
ing
Reset input for coun-
ter
Load input for coun-
ter
REX640
Technical Manual