Loop - Omron CJ Series Operation Manual

Data Exchange with the CPU Unit
I/O Address
Word Bits
Outputs n+10 00 to 15
(CPU Unit
n+11 00 to 15
to Tem-
perature
n+12 15
Control
Unit)
14
13
12
08 to 11
7
6
5
4
3
2
1
0
38

Loop

Name
Loop 3 Set Point Set the Set Point for the loop as 4-digit BCD or 16-bit binary.
Loop 4 Set Point For negative BCD values, set the most significant digit to F.
The values set here are transferred to RAM.
Loop 3 Save Bit Operating Parameters are written from RAM to EEPROM in the
Temperature Control Unit when a Save Bit is turned ON. Refer
Loop 4 Save Bit
to 2-6 Data Ranges for a list of the specific parameters that are
written.
DO NOT turn OFF the power supply when data is being written
from RAM to EEPROM. Confirm that the Save Completed Flag
has turned ON before turning OFF the power supply.
Loop 3 Change PID When a Change PID Constants Bit is turned ON, the corre-
Constants Bit sponding PID Constants Calculated Flag will turn OFF and the
PID constants stored as Operating Parameters will be retrans-
Loop 4 Change PID
ferred to the Temperature Control Unit.
Constants Bit
--- --- Leave set to all zeros.
--- --- Leave set to 0.
Loop 3 Stop Bit Turn OFF the Stop Bit to perform temperature control for loop 3
and turn it ON to stop temperature control for loop 3.
The Stop Bit will not function if pin 1 on the DIP switch is OFF
and the CPU Unit is in PROGRAM mode.
--- --- Leave set to 0.
Loop 4 Stop Bit Turn OFF the Stop Bit to perform temperature control for loop 4
and turn it ON to stop temperature control for loop 4.
The Stop Bit will not function if pin 1 on the DIP switch is OFF
and the CPU Unit is in PROGRAM mode.
Loop 3 Stop AT Bit Turn ON the Stop AT Bit to stop autotuning for loop 3. The sta-
tus of the Stop AT Bit is ignored if autotuning is not being per-
formed.
Loop 3 Start AT Bit Turn ON the Start AT Bit to start autotuning for loop 3. The sta-
tus of the Stop AT Bit is ignored if the Stop AT Bit for loop 3 is
ON.
Loop 4 Stop AT Bit Turn ON the Stop AT Bit to stop autotuning for loop 4. The sta-
tus of the Stop AT Bit is ignored if autotuning is not being per-
formed.
Loop 4 Start AT Bit Turn ON the Start AT Bit to start autotuning for loop 4. The sta-
tus of the Stop AT Bit is ignored if the Stop AT Bit for loop 4 is
ON.
Section 2-5
Function