38
Mahr GmbH • Digimar 816 CL
EN
– Only coordinate ...............................................................................................
– Manual data transmission ...............................................
– Automatic data transmission ...........................................................................
– Display the measurement number ..................................
M
A
1
2
3
5.1.2 Interfaces
Interface: MarConnect RS232C duplex
Suitable data connection cables:
– Opto RS232C (2m), SUB-D socket 9 pin Order no. 4346020
– 2000 usb (2m), incl. MarCom Standard Order no. 4346023
Date transmission with the data connection cable 4346020 is not possible when being operated with
Simplex!
Transfer parameter
Transfer speed: 4800 Baud, 1 start bit, 7 ASCII-bits, even parity, 2 stop bits
Connection
Functions on the data cable Functions on the PC
9 pin D-Sub socket
TxD data output 2 ................................. 2 RxD
RxD data input 3 ................................. 3 TxD
V+ power supply 4 ................................. 4 DTR
V- power supply 7 ................................. 7 RTS
Duplex operation (without adapter 4346394)
PC-side
? CR Power supply
TxD DTR = ‘High’ level
RTS = ‘Low’ level
RxD
4 ms min. 5 ms
max. 40 ms
– In this operating mode it is only possible to call up the measuring value in the format ±XXX.XX(X)_mm<CR>
resp. ±XX.XXXX(X)_inch<CR>.
– If the time between individual characters is longer than 30 ms (approx. 15 characters), then this will result in
subsequent characters being interpreted as new instructions.
– After receipt of the instruction RS232-receipt is being locked until the instruction is being executed. Each reply
string is terminated by CR.
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