NARDA PMM 7010 Series, Руководство пользователя

Страница: 51 / 76

Remote control 7-1
7 – Remote control
7.1 Introduction
PMM 7010 has been designed to allow remote control operations through
its either RS232 or USB (Rear) ports.
When using RS232 you can use only one instrument connected to PC
serial port. If using USB you can connect other instruments to the free
RS232 port and the PMM 7010 Receiver to the USB 2.0.
PMM 7010 uses the same commands protocol for both communications.
7.2 Communication
Half duplex communication is implemented. The RS232 port has a DB-9
female connector and the USB 2.0 has a USB-B connector.
A built-in automatic tool identify the type of communication used.
The communication is at 115200 bit/sec with 8 bit words, one start bit, one
stop bit and no parity
(
115200 N 8 1 ).
7.3 Protocol
Be aware that only the PC can send the commands. PMM 7010 will
answer when is inquired only.
The communication uses strings with variable byte width. The characters
used inside the strings are in ASCII format (00 - 127) at 7 bits. The most
significant bits are ignored in reception and set to 0 during transmission.
Every string starts with the special character “#” and stops with “*”.
7.4 Format
Commands are made of ASCII string delimited character “#” (0x23) and
the character “*”(0x2A)
Replies are terminated with <CR><LF> (\r\n)
All the following examples are indifferently referred to the PMM 7010.
Document 7010EN-81007-1.09 - © NARDA 2018