gefran 2850T, Инструкция по использованию и установке, Страница: 163 / 166

161
13. ANNEXES
80703B_MHW_2850T/3850T_02-2019_ENG
13. ANNEXES
13.1. System variables
13.1.1. General
13.1.2. PID loop
Type Group Variable name Use Description
Register Ret Reg PID_ n _SP R W
PID setpoint n.
n can take on values from 1 to 16.
Register Ret Reg ALL_ pid _ n R W
Alarm threshold for alarm n for PID pid .
pid can take on values from 1 to 16.
n can take on values from 1 to 4.
Boolean Ret Reg PID_ n _MAN R W
Manual command for PID n .
n can take on values from 1 to 16.
Register
Ret
System
PID_MAN_POW_n RW
PID manual power. Can be set only after having configured the PID in
manual mode
Type Group Variable name Use Description
Register Ret Reg STATUS_n R
Program status n.
n can take on values from 1 to 8.
The variable can be 0 = ready, 1 = run, 2 = hold, 3 = end.
Boolean System START_ n R W
Start program n. The status switches to RUN (STATUS_n = 1)
n can take on values from 1 to 8.
13.1.3. SP Programmer
Type Group Variable name Use Description
Boolean System PW_ON R Marks instrument power on in reports.
Boolean System PW_OFF R Marks instrument power off in reports.
Boolean System BATCH_DISABLE R W BATCH recording on/off
Boolean System DISK_FULL R Disk Full Alarm
Boolean System IO_CABLE_FAULT R No communication cable alarm
Boolean System NO_SD_CARD R NO SD card alarm.
Boolean System FUNCT_n R
Display of pressing of front function keys 8-9-10. n can take on values
from 1 to 3.
3 variables equivalent to digital inputs (and therefore RO) which become
ON when function keys 8-9-10 are pressed, OFF otherwise (3850 only)
Boolean System LED_n RW
Variables equivalent to digital inputs controlling LEDs 8-9-10. n may
have a value of 1 to 3 (3850 only)
The following tables list all default variable names, grouped
by use. A default variable is a variable already set in the
controller and that can be used to set and know its status.
Type
Indicates the type of variable:
•
Boolean: logic value (true or false).
• Register: numeric value with decimal point, the admis-
sible value interval is specified in the
Interval column.
• String: alphanumeric character string (a...z, A...Z, _).
Group
Indicates the variable group:
•
System: internal memory to store system variables.
• Ret Reg: non-volatile memory for variables.
Variable name
The default variable name. When the variable name is
repetitive, meaning it follows the same layout only changing
one or two only changing the numeric ID (e.g. the variable
FUNCT_1 has the numeric ID “1” ), it is listed only once in
the table and the variable element is highlighted in script.
Interval
The admitted value interval, for numeric values, or maxi-
mum number of characters, for String variables.
Use
Shows whether the variable can be read (R) or write (W).