User’s Manual UT5583 Insulation Resistance Tester
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Figure 13-1 RS-232 Connector, D-sub 9 Pin Male Head
Use the crosswire of D-sbu 9 pin femal head to connect the instrument to PC.
The default communication setting of the instrument
Transmit mode: full duplex asynchronous communication with start and stop bit
Baud rate: [Baud Rate] setting in <System Configuration> page
Data bit: 8 bits
Stop bit: 1 bit
Parity bit: no
13.2 RS-485 Interface Setting
The option RS485 interface of instrument and support ModBus RTU protocol.
The standard interface of instrument is RS-232C. User can can also purchase a matching RS232 to
RS485 interface converter to achieve RS485 functions.
Figure 13-1 Station Setting of RS485
The instrument’s station number can set to 1~32 in <System Configuration>, station number of multi-salve is
different;
RS485 is a communication interface support multi-machine communication, it can connect multi-machine
via one host.
