Eldex Optos 1LM - For ¼” Hastelloy C-276 Pump; Appendix; Rs232

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APPENDIX
RS232
An RS232C modular jack (connector is RJ-11) is on the rear panel. It is configured for 9600 baud, 8 data
bits, 1 stop bit, and no parity. Pinout is:
RJ 11 Pin
Function
DB 9 pin
1,6 (white, purple)
Ground
5
2 (black)
DSR (Input)
6
3 (red)
RXD (Input to pump)
2
4 (green)
TXD (Output from pump)
3
5 (yellow)
DTR (Output)
4
The pump uses hardware handshaking. The pump does not transmit on the TXD output if the DSR input is
at a low logic level. The pump does not receive on the RXD input when the DTR output is at a low logic
level. A low logic level is –3.0 to –15 volts, and a high logic level is 3.0 to 15 volts.
The pump does not send a message except when queried. Each command is characterized by a unique two-
letter command code. Only one command can be issued per line. Case is irrelevant. Command strings sent
by the pump are terminated by the “/” character.
Command
Response
Default
Minimum
Maximum
Comments
RU
OK/
Sets the pump to the RUN state.
ST
OK/
Sets the pump to the STOP state.
SFxx.xxx
OK/
1.0
Pump specific
Pump specific
Sets the flow rate to xx.xxx mL/min
RF
OKxxxxx/
1.0
Pump specific
Pump specific
Reads the flow rate
ID
OKxyzaaa/
Reads ID of pump where:
x = piston diameter (0=.093, 1=.125, 2=.250)
y = piston stroke (0=.125, 1=.250, 2=.500)
z = pump material (0=ss, 1=pk)
Aaa = EPROM revision
RP
OK,xxxx/
0
Pump specific
Reads the pump pressure
SHxxxx
OK/
Pump
specific
0
Pump specific
Sets the pump high pressure limit
SLxxxx
OK/
0
0
Pump specific
Sets the pump low pressure limit
RH
OKxxxx/
Pump
specific
0
Pump specific
Reads the pump high pressure limit
RL
OKxxxx/
0
0
Pump specific
Reads the pump low pressure limit
SCxx
OK/
0
0
60
Sets the pump compressibility compensation
RC
OKxx/
0
0
60
Reads the pump compressibility compensation
SRx
OK/
Sets the pump refill rate factor (0=Full Out; 1=15:85;
2=30:70; 3=50:50; 4=70:30)
RR
OKx/
Reads the pump refill rate factor
KD
OK/
Disables keypad (default status at power-up is
enabled).
KE
OK/
Enables keypad.
SDx
OK/
1
0
2
Sets the pump piston diameter (0=.093, 1=.125,
2=.250)
RD
OKx/
1
0
2
Reads the pump piston diameter (0=.093, 1=.125,
2=.250)
SSx
OK/
1
0
2
Sets the pump stroke (0=.125, 1=.250, 2=.500)
RS
OKx/
1
0
2
Reads the pump stroke (0=.125, 1=.250, 2=.500)
SMx
OK/
0
0
1
Sets the pump material (0=ss, 1=pk)
RM
OKx/
0
0
1
Reads the pump material (0=ss, 1=pk)
RX
OKxyz/
Reads the pump fault status where:
X = motor stall, 0=no fault, 1=fault
Y = hi press limit, 0=no fault, 1=fault
Z = lo press limit, 0=no fault, 1=fault
SX
OK/
Sets LED to red and stops pump