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M4557 - Model 9210 Nitriding Controller
SSi Manual SERIES 9210-M4557-Nitriding Page 42 of 42
Chapter 5 - SERIES 9210 Opcodes
Programmer Description
The SERIES 9210 series Atmosphere/Temperature Recipe Programmer provides a convenient
operator interface and recipe programmer.
The programmer uses enhanced Opcodes that reduce the number of steps required for a program.
Each step consists of an opcode, an optional temperature value, an optional atmosphere value, and
an option value. The opcode determines how and if each of the three values are used.
Opcodes
NO-OP
This no operation code does nothing and is used as a place hold on programs that are less than 24
steps.
ALARM
This alarm function is used to notify the operator that an operation is complete or that a manual
action is required. The program waits until the alarm is acknowledged to proceed. The option is
the alarm number to display.
ATM_INQ
The atmosphere inquiry is used to wait for the actual atmosphere to reach the specified
atmosphere setpoint.
The options are:
• wait, reach within band;
• wait up, reach or exceed the setpoint;
• wait down, reach or be less than the setpoint.
The default band can be set under the
Configuration
menu and is typically 10 (i.e. 0.10 percent
dissociation).
• The
SET_WAIT
opcode will change the band limit
The
LIMIT
opcode immediately following this opcode sets a time limit on the wait.
A
BRANCH
opcode immediately following this opcode can be used to change the program flow
based on the inquiry results.
BRANCH
The
BRANCH
opcode can change program flow based upon an inquiry opcode. The temperature
data is interpreted as the program step if the inquiry is true and the atmosphere data as the
program step if the inquiry is false.
CC_SP_L
The
Cascade Setpoint Limit
opcode will allow the user to set the upper and lower limits for the
cascade setpoint. The temperature data is the lower limit, and the atmosphere data is the upper
limit.
DELAY
This opcode is used when a short delay is needed. The option value is the delay time in seconds
.
DEV_AL
This deviation alarm opcode is used to turn the temperature or atmosphere deviation alarms ON
or OFF.
The option values are:
• OFF, turns OFF both the temperature and atmosphere alarms
• TEMPERATURE, turns ON the temperature alarm and turns OFF the atmosphere alarm