Manual Micro Dispensing Systems MDS 3010A-FA and MDS 3020A-FA
VTK-VS-BA-002 Revision B 22
7.5. Interfaces
power switch 24 V supply
thermocouple 1 socket RS 232C
sensor socket
heater 1 socket
actuator socket
PLC interface
Figure 12: Back plane of the control unit MDC 3090A-FA
Attention!! Be sure to mount the connectors properly (screw tightly!) to the control unit;
otherwise malfunctions may appear.
Attention!! There is no heating available for the control unit MDC 3090A-FA.
7.5.1. Serial interface: Sub-D, 9-pin
The serial interface is structured according to SCPI standard. It works with software handshake,
the hardware handshake connections are not used.
serial transmitting signal
Table 6: Plug connection of the Sub-D9 socket RS-232 interface (serial)
Serial interface parameters
Bits per second: 9600
Data bits: 8
Parity: none
Stop bits: 1
Protocol: none
The interface is designed for a serial
cable with 1:1 interconnection, and Sub-D
9-pin plug/socket connectors.
Table 7: Serial interface parameters/Serial cable
7.5.2. Instruction set for serial interface
SCPI commands for the serial interface – overview (The relevant firmware version is 4061FA1-D.)
1. *ESR?
2. *IDN?
3. LCD?
4. SYSTEM:KLOCK:OFF
5. SYSTEM:KLOCK:ON
6. TRIGGER:SET:?
7. TRIGGER:SET:<Rising>,<Open Time>,<Falling>,<Needle Lift>,<Number of Pulses>,<Delay>
8. TRIGGER:SET:<Rising>,<Open Time>,<Falling>,<Needle Lift>,<NumberofPulses>,<Delay>,1
9. VALVE:OPEN
10. VALVE:OPEN:<Rising>,<Open Time>,<Falling>,<Needle Lift>,<Number of Pulses>,<Delay>
11. VALVE:UP
12. VALVE:DOWN
13. WRITE:LCD:<text>
14. SYSTEM:SHOW:CYCLES
15. SYSTEM:SHOW:VALVEID
16. SYSTEM:SHOW:CONTROLLERID
17. *OPC?