10.4 TR-MARK III Serial Communication Interface
NOTE
TR-MARK III serial interface is designed to work properly with the
same hardware and command set as TR Spy II.
Commands that are not used on TR-MARK III will return ‘ok’ as
Answer.
10.4.1 Hardware Protocol
9 pole D-Sub
Pin 2 TXD Data TR to Computer
Pin 3 RXD Data Computer to TR
Pin 7 GND
+/- 12 V Signals
Protocol: 19200 Baud, 8 Bit, 1 Stop bit, no parity
10.4.2 Software Protocol
NOTE
Required firmware version 3.1.1.0 and later. Do not use former
Versions for Remote Control. Call us for updates.
10.4.2.1 Switch to Remote
The Device is switched to REMOTE by:
-
Command “RM”
-
Every command which is executing a measurement (MA,MB,MC,MF )
10.4.2.2 Switch to Local
With Command SL ( Set to Local) or with the Local Button on the display. This button will be
the only object on screen in remote mode until it is pressed, or ‘local’ command is sent.
90100-2.20 Instruction Manual TR-MARK III 250V
Page 53 of 68
