ACL CSC400 User Manual

45
control option is selected in the AUX2 Relay
Settings (Holding Register 144)
3-16 3-16 2 - 15 (Reserved for reading coil
status. See Function
Code 0x01)
17
17
16
Increment TC1, IGN1
setpoint
ON = increment TC1, IGN1 setpoint, OFF = no
effect
18
18
17
Decrement TC1, IGN1
setpoint
ON = increment TC1, IGN1 setpoint, OFF = no
effect
19
19
18
Increment TC2 setpoint
ON = increment TC2 setpoint, OFF = no effect
20 20 19 Decrement TC2 setpoint ON = increment TC2 setpoint, OFF = no effect
21
21
20
Increment TC3 setpoint
ON = increment TC3 setpoint, OFF = no effect
22
22
21
Decrement TC3 setpoint
ON = decrement TC3 setpoint, OFF = no effect
23
23
22
Remote Stop
ON = Stop, OFF = no effect
24
24
23
Remote Start
ON = Start, OFF = no effect
25
25
24
Increment TC1, IGN2
setpoint
ON = increment TC1, IGN2 setpoint, OFF = no
effect
26
26
25
Decrement TC1, IGN2
setpoint
ON = increment TC1, IGN2 setpoint, OFF = no
effect
Notes:
- Write Single "Coil" (or setting) function code 0x05 can increment/decrement the setpoint temperatures of either
thermocouple, and can also trigger a Remote Stop or Remote Start command.
- "0xFF00" (or 65280 in decimal) turns a "coil" ON, "0x0000" turns a coil "OFF"
- For our "coils" or settings, 0x0000 or OFF, has no effect on the Setpoints or Remote Stop/Start settings.
- Remote Stop disables all power going to ignition modules and closes (turns of power to) all six valve solenoids
- Remote Stop can be cleared by a physical toggling of the Remote Start/Stop power rung or by pressing the Stop
button, then the Start button
- Remote Stop can also be cleared by receiving a Modbus message turning Remote Start ON
- Remote Start enables the CSC400 to be turned on
- Remote Start can be interrupted if Remote Start/Stop is open, if a Shutdown is open, or if POC is still open
- Remote Start can also be cleared by receiving a Modbus message turning Remote Stop ON
Function Code 0x06 - Write Holding Registers
Holding registers are 16-bit values (2 bytes)
Register bytes are written as MSB then LSB
Example
PLC
Register
Address
Register
#
Modbus
Holding
Register
Address
Description
Notes
40001 1 0 TC1 temp setpoint (deg C), IGN1 Writing a value to TC1, Igniter 1 in
degrees C, also writes to the TC1, IGN1
degrees F register (after conversion)
40002 2 1 TC2 temp setpoint (deg C) Writing a value to TC2 in degrees C,
also writes to the TC2 degrees F
register (after conversion)
40003
3
2
TC1 temp setpoint (deg F), IGN1
Writing a value to TC1, Igniter 1 in
degrees F, also writes to the TC1, IGN1
degrees C register (after conversion)

ACL CSC400 Specifications

General

Brand	ACL
Model	CSC400
Category	Controller
Language	English