User manual

34 UR3274U - User manual
. Master
The device works as master if value selected on parameter 59
mast. is other than di s .
.. Master Mode in retransmission
Selecting this mode, the device will write the value to be
retransmitted to the address selected on parameter 60
ADD.R
on the slave devices having same ID as value selected on
parameter 57
SL.AD .
Regarding retransmission of setpoint values, after writing the
value on slaves,
UR3274U starts reading the corresponding
word, so that any modication of value on the slave will be
automatically updated also on the Master. Two successive
pollings will be delayed for the time selected on parameter
57
SE.DE .
The following table includes the options allowing the Master
mode in retransmission and the relevant retransmitted value.
mast.
Description
w.pro.
Write Process
Write process value
r.w.co.
Read/Write
Command Setpoint
Write and read command setpoint value
w.ou.p.
Write Output
Percentage
Write output percentage rated by P.I.D.
function (Range -)
r.w.a.1
Read/Write Alarm 
Write and read alarm  setpoint value