Watlow Electric Revision 5 Benutzerhandbuch
7
2.2 OPERATING PARAMETERS
Independently set for each loop through serial interface.
Independently set for each loop through serial interface.
Input type:
any standard type (see above), any mix.
Gain:
0 to 255 proportional; 0 to 510 on/off. Proportional
Band: Direct reading in engineering units of the
loop range.
Band: Direct reading in engineering units of the
loop range.
Integral:
0 to 1020 seconds. Reset: .05 to 60 Repeats/Min. [4
sec. resolution].
sec. resolution].
Derivative:
0 to 255 sec. Rate: .01 to 4.25 Min.
Digital Filter:
Averages last 0 to 255 outputs. [0- 127.5 sec. time
constant].
constant].
Setpoint:
+span. Resolution: 0.01%; 0.1o for T/C.
ANASOFT resolution: 0.1%; 1o for T/C.
ANASOFT resolution: 0.1%; 1o for T/C.
Deviation band alarm:
0 to +25% Full Scale; 0 to +250o T/C.
Control output level:
Direct or reverse acting, 0-100%.
Manual output:
0 to 100% (0.4% resolution).
2.3 REPORTING PARAMETERS
The computer can request any of the following for any loop:
The computer can request any of the following for any loop:
Operating parameters:
all of the above
Analog inputs:
measured values
Digital I/O:
status
2.4 COMMUNICATIONS
Types:
Types:
RS-232 or 20ma current loop, factory set; optional
RS422 or RS485
RS422 or RS485
Baud rate:
2400 or 9600, switch selectable
Protocol:
Form of ANSI X3.28-1976 [Allen Bradley
compatible]
compatible]
Character set:
ANSI X3.4
Error check:
CRC or BCC, switch selectable.
Isolation:
optical for all types including RS-232.
Display:
LED indicates communication active.