Omron E5AX-LA Manual page 4

E5AX-LA/-MA
Communications
Protocol
Transmission method
Synchronization method
Baud rate
Transmission code
Communications Write to
Digital
Controller
Read from
Digital
Controller
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
RS-232C, BCD
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
Auto-tuning Indicator
Flashes on and off every
second when auto-tun-
ing is taking place.
Shift Set Indicator
Lights when shift set func-
tion is in operation.
Manual Mode Indicator
Lights when in manual
mode.
Output Indicator
Lights when the control
output is ON. Lights off
when the current output is
ON.
Level Key
Press for 2 seconds mini-
mum to change levels to
set different groups of pa-
rameters.
Display Key
Press to shift the display
to the next parameter.
4
RS-232C, RS-422 RS-485
Half-duplex
Start-stop synchronization
150/300/600/1,200/2,400/4,800/9,600 bps
ASCII (7-bit)
Main setting, set alarm value, proportional
band, integral time, derivative time, AT
start/stop etc.
Main setting, set alarm value, proportional
band, integral time, derivative time, output
value, scaling value, process value, error
codes, etc.
XM4 D-sub connector (9 pin) (OMRON)
XM4, D-sub connector (25 pin) (OMRON)
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.
Front Cover
Down Key
Press to decrease the set value or other pa-
rameters. Successively decreases the val-
ue when held down.
BCD Transmission output
Data select code 4 to 20 mA DC
Load: 600 W max.
Resolution: Approx. 3,200
--- ---
Main setting, set Write disabled
alarm value
Main setting, set Process value (see note 3),
alarm value, output value
process value, error
codes, etc.
Alarm 1 Indicator
Lights when the alarm 1 output is ON.
Set Value (SV) Display
Displays set value and other
parameters.
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.
E5AX-LA/-MA