Mitsubishi Melsec F-20p-E

[coppice]

I have a F-12R with the little panel that fits on top to program it.
Have worked out most simple programming but cannot set the value to a timer
Can anyone help?

 

[davefinic]

I dont know this model but fx plcs write t1 k600 for a 6 sec timer t1 is the number of timer used then leave a space and k is the constant 600 is the time delay in milliseconds hence 600 is equal to 1 second

Is this the model number of the small alpha controllers?

 

[coppice]

The PLC is a F-12R 6 i/p, 6 o/p
The programming panel is F-20p-e
There are only 24 buttons
IN BROWN
LD AND OR
7/LDI 8/ADI 9/ORI
4/OUT 5/ANB 6/ORB
1/RST 2/SFT 3/PLS
0/NOP */END

IN WHITE
k/search
instr step
delet step(-)
insert step(+)
write/monitor clear

I can program a timer, monitor the value, I just cannot change the timer