Watlow F4T User Manual

Watlow F4T • 127 • Chapter 5 Function Reference
Signals
Direction Label Type Function
Receivers
CNT Digital Deccrements the count
RST Digital Resets the count to the load value
Transmitters OUT Digital On when the count equals the target value
Function
To decrement the count with the CNT, set Function to Down.
Target Value
Set the count value at which OUT turns on.
Range: 0 to 9,999
Load Value
Set the value to which the Count parameter is set each time the controller is powered up and
whenever the counter is reset by RST.
Range: 0 to 9,999
Latching
Select the behavior for the output when Count exceeds the Target Value.
Options:
• Yes: output is latched on once the count reaches the target value and turns off only
when the counter is reset
• No: the output is on only when the count equals the target value. Additional counts
cause the output to turn off
Count Active Level
Set which state changes at CNT are counted.
Options:
• Both: the count decrements when CNT changes from on to off and when it changes
from off to on
• High: the count decrements only when CNT changes from off to on
• Low: the count decrements only when CNT changes from on to off
Reset Active Level
Set which state change at RST sets Count equal to Load Value.
Options:
• High: off to on
• Low: on to off
Count
Indicates the current count.
Range: 0 to 9,999

Watlow F4T Specifications

General

Inputs	Thermocouple, RTD, mA, V
Outputs	Relay, SSR, mA, V
Communication	Ethernet, Modbus RTU
Data Logging	Yes
Certifications	CE, UL, cUL, RoHS
Control Modes	PID, On/Off
Power Supply	100 to 240 VAC
Operating Temperature	0 to 50°C
Enclosure Rating	IP65
Display	4.3 in. (109 mm) color touch panel LCD
Control Loops	Up to 4