Remote control 14-114 – Remote control14.1 Introduction PMM 9010 or PMM 9010/03P/30P/60P has been designed to allow remotecontrol operations through its either RS232 or USB (Rear) ports.When using RS232 you can use only one instrument connected to PCserial port. If using USB you can connect other instruments to the freeRS232 port and the PMM 9010 or PMM 9010/03P/30P/60P Receiver to theUSB 2.0.PMM 9010 or PMM 9010/03P/30P/60P uses the same commands protocolfor both communications.14.2 Communication Half duplex communication is implemented. The RS232 port has a DB-9female connector and the USB 2.0 has a USB-B connector.A built-in automatic tool identify the type of communication used.Standard communication is implemented at 115200 (default), 38400, 9600bit/sec with 8 bit words, one start bit, one stop bit and no parity(115200 N 8 1).Rel 1.30 and later when supported by FPGA 0x1E and later supports alsoRTS/CTS Handshake.14.2.1 RS 232 (Speed) Under Setup menu, as described in chapter 3 of this manual, there is theRS232 speed selection.Pressing the Left or the Right Arrow key, inside the Setup menu, thesecond page appears. In the second page is the RS 232 Port speedsetting function.Here it is possible to set the bit rate of the RS 232 serial port whichconnector is located on the rear panel.The actual setting is always shown between the parenthesis and it ispossible to choose between 9600, 38400 and 115200 bps.The default speed, that is the one to be used for standard communication,is 115200.In case an optional device (ex. GPIB interface) is to be connected to theRS 232 port, refer to its operating manual to know the correct speed to beselected.14.3 Protocol Be aware that only the PC can send the commands. PMM 9010 or PMM9010/03P/30P/60P will answer when is inquired only.The communication uses strings with variable byte width. The charactersused inside the strings are in ASCII format (00 - 127) at 7 bits. The mostsignificant bits are ignored in reception and set to 0 during transmission.Every string starts with the special character “#” and stops with “*”.14.4 Format Commands are made of ASCII string delimited character “#” (0x23) andthe character “*”(0x2A)Replies are terminated with (\r\n)All the following examples are indifferently referred to the PMM 9010or the PMM 9010/03P/30P/60P.Document 9010EN-81037-2.57 - © NARDA 2018
