Panasonic FP Series User Manual

Counter instructions
322
Part II IEC Instructions
Body
Count up:
If reset is set, the current_value (CV) will be reset. If up_clock is set, the value 1 is added to the
current_value. This procedure is repeated for each rising edge detected at up_clock until the
current value is greater than/equal to the set_value. Then output_up is set. The procedure is not
conducted, if reset and/or set is/are set.
Count down:
If set is set (status = TRUE), the set_value (PV = preset value) will be loaded in the current_value
(CV). If down_clock is set, the value 1 is subtracted from set_value at each clock. This procedure
is repeated at each clock until the current_value is smaller than/equal to zero. Then,
signal_output is set. The procedure will not be conducted, if reset and/or set is/are set or if CU
and CV are set at the same time. In the latter case, counting will be downwards.
LD
ST
When programming with structured text, enter the following:
copy_name(CU:= up_clock, CD:= down_clock, RESET:= reset, LOAD:= set, PV:=
set_value,
QU=> output_up, QD=> output_down, CV=> current_value);

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model