Table of Contents
Advertisement
D
A
PID M
EVICE
LLOCATION OF
Data Register Allocation - Block 1 Write Only Parameters
The CPU module writes the following parameters stored in the data registers to the PID module every scan.
Offset from
the Control
Parameter
Register
+20
Set Point (SP)
CH0
Manual Mode Output
+21
Manipulated Variable
+22
Operation Parameter
+23
Set Point (SP)
CH1
Manual Mode Output
+24
Manipulated Variable
+25
Operation Parameter
Note: When the power to the PID module is turned off, Block 1 parameters are cleared to zero.
Operation Parameters
Bit
Bit0
Control Enable Bit
Bit1
Auto-tuning (AT)/Auto-Reset Bit *1
Bit2
Auto/Manual Mode Bit
Bit3
Program Control Bit
Bit4
Program Hold Bit *2
Bit5
External SP Input Enable Bit
Bit6
Advance Next Step Bit *3
Bit7
Advance Previous Step Bit *4
Bit8 to
Reserved
Bit15
*1: Once auto-reset is performed, it cannot be cancelled during its performance.
*2: The program control is suspended while the program hold bit is on.
*3: During the program control, the current step is terminated and the program control is proceeded to the start of the
next step when the advance next step bit is turned off to on.
*4: During the program control, the progression of the program control is moved back when the advance previous step
bit is turned off to on. If the elapsed time in the current step is less than 1 minute, the program control goes back to
the start of the previous step. If the elapsed time in the current step is more than or equal to 1 minute, the program
control goes back to the start of the current step. Even when the advance previous step is executed at Step 0, the
program control does not move back to Step 9 regardless of the program end action.
5-10
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
ODULE
When the input is thermocouple or resistance thermometer:
Set point (SP) lower limit to set point (SP) upper limit
When the input is voltage or current input:
Linear conversion min. to linear conversion max.
When heating/cooling control is disabled:
Output manipulated variable lower limit to output manipulated
variable upper limit
When heating/cooling control is enabled:
- Cooling output manipulated variable upper limit to heating
output manipulated variable upper limit
Refer to the table below for the operation parameters
When the input is thermocouple or resistance thermometer:
Set point (SP) lower limit to set point (SP) upper limit
When the input is voltage or current input:
Linear conversion min. to linear conversion max.
Output manipulated variable lower limit to output manipulated
variable upper limit
Refer to the table below for the operation parameters
Operation Parameters (1 word)
Item
Status
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
FC5A MicroSmart PID Module User's Manual FC9Y-B1283
Description
Description
Control disable
Control enable
Auto-tuning (AT)/Auto-reset cancel
Auto-tuning (AT)/Auto-reset perform
Auto mode
Manual mode
Program control stop
Program control run
Program control run
Program control hold
External SP input disable
External SP input enable
No action
Program control advance next step
No action
Program control advance previous step
Fixed value 0
R/W
W
W
W
W
W
W
Advertisement
Table of Contents
