E5AX-LA/-MA
E5AX-LA/-MA
4
Communications
Protocol
RS-232C, RS-422
RS-485
BCD
Transmission output
Transmission method
Half-duplex
Data select code
4 to 20 mA DC
Load: 600
W
max.
Resolution: Approx. 3,200
Synchronization method
Start-stop synchronization
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Baud rate
150/300/600/1,200/2,400/4,800/9,600 bps
Transmission code
ASCII (7-bit)
Communications
Write to
Digital
Controller
Main setting, set alarm value, proportional
band, integral time, derivative time, AT
start/stop etc.
Main setting, set
alarm value
Write disabled
Read from
Digital
Controller
Main setting, set alarm value, proportional
band, integral time, derivative time, output
value, scaling value, process value, error
codes, etc.
Main setting, set
alarm value,
process value, error
codes, etc.
Process value (see note 3),
output value
Note:
1. The maximum total cable length must not exceed the following limits.
RS-422: 500 m; RS-232C: 15 m; RS-485: 500 m
$
Recommended connectors for E5AX.
RS-485, -422, Transmission output
XM4 D-sub connector (9 pin) (OMRON)
RS-232C, BCD
XM4, D-sub connector (25 pin) (OMRON)
2. A maximum of 32 Digital Controllers can be connected to one host computer using serial communications (RS-422, RS-485).
3. Outputs process value within the set limits.
Nomenclature
Process Value (PV) Display
Displays not only the process value but also in-
dicates the character for parameter being dis-
played on the SV display and error messages.
Auto-tuning Indicator
Flashes on and off every
second when auto-tun-
ing is taking place.
Display Key
Press to shift the display
to the next parameter.
Level Key
Press for 2 seconds mini-
mum to change levels to
set different groups of pa-
rameters.
Output Indicator
Lights when the control
output is ON. Lights off
when the current output is
ON.
Shift Set Indicator
Lights when shift set func-
tion is in operation.
Manual Mode Indicator
Lights when in manual
mode.
Set Value (SV) Display
Displays set value and other
parameters.
Alarm 1 Indicator
Lights when the alarm 1 output is ON.
Alarm 2 Indicator
Lights when the alarm 2 output is ON.
A/M Key (Automatic/Manual)
Press for 1 second minimum to switch
between auto output mode and manual
output mode.
Up Key
Press to increase the set value or oth-
er parameters. Successively in-
creases the value when held down.
Front Cover
Down Key
Press to decrease the set value or other pa-
rameters. Successively decreases the val-
ue when held down.