Vermes MDS 3000 Series, Руководство пользователя

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VTK ‐ VS ‐ BA ‐ 004e ‐ B | User Manual MDS 3200A
| Communication Interfaces
38
7 COMMUNICATION INTERFACES
7.1 Serial Interface RS ‐ 232C: 9 ‐ Pin Sub ‐ D
This local interface is structured according to SCPI Standard. These “Standard Commands for
Programmable Instruments“ represent a standardized set of instructions used for control and
programming, transmitted in form of ASCII text. They can be generated by any selectable pro ‐
gramming language in any environment. The serial interface is operated by means of software
handshake. The hardware handshake communications are not in use.
INFORMATION! (Communication while triggering)
The user should bear in mind not to send instructions through this interface in the course of a run ‐
ning dispensing cycle. Communication is only possible between distinct sequences.
After sending data or parameters to the control unit you have to wait for the “OK” signal before
you can start further actions.
7.1.1 Functions Allocated to the different Pins
PIN Characteristics Level Function
1 Reserved for future use
___________ ___________
2 Input TX Serial transmission signal
3 Input RX Serial reception signal
4 Connected to PIN 6
5 Ground Ground
6 Connected to PIN 4
7
___________ ___________ ___________
8
___________ ___________ ___________
9
___________ ___________ ___________
The MDC 3200A RS ‐ 232C log uses RS ‐ 232C Standard and is designed for communication by
means of a serial cable, connected 1:1, with a Sub ‐ D 9 pin connector.
The following parameter configuration is used for MDC 3200A communication:

Synchronous mode: Half ‐ duplex

Bits/s : 9600

Start bit: 1

String length: 8 bit (ASCII)

Parity: None

Stop bit: 1

Log: None