Fabt ladder III tmrc

[CHAD LAWSON]

I am writing a ladder for a Cincinatti FTV to add some options and am quite experienced in ladder logic however not sure about some of the sub functions. Would like to understand more about the Sub 54 tmrc function. Would like to use it as a thrity minute interval timer but not sure about setting up the d bits in the function block or where these are interpretted. Fanuc ladder has some very complicated funtional instructions and to me lack a little information as far as using them in the pmc ladder language manual. It is and 18i-mb sb-7 program. Most of my ladder edits us simply sub 3 and 24 timers. Thanks to anyone who could help explain.

[f-bu]

RD ACT
SUB 54 ;TMRC
4 ;Timer accuracy number, see below
D500 ;Timer set time address, 2 bytes
D502 ;Timer register address, 2 bytes
WRT xxx.x


;Timer accuracy number
;0=8 msec
;1=48 msec
;2=1 sec
;3=10 sec
;4=1 min
;5=1 msec
;6=10 msec
;7=100 msec