Technology modules
D300529 0115 - BL67 I/O modules12-10
Table 12-3:
Technical data
Designation BL67-1RS232
Number of channels 1
Power supply vie module bus
Voltage from module bus U
MB
5 VDC
Permissible range 4.75 to 5.25 VDC
Field supply 24 VDC
Permissible range 18 to 30 VDC
Nominal current consumption at
5 VDC (module bus) I
MB
≤ 140 mA
Data buffer 128 byte receive buffer
64 byte transmit buffer
Transmission level active (U
RS1
)-15 to -3 V
Transmission level inactive (U
RS0
) 3 to 15 V
Transmission channels TxD and RxD, full duplex
Transmission rate max. 115200 baud (parameterizable)
RS232 cable length max. 15 m
Data flow control software handshake (Xon/Xoff)
hardware handshake (RTS/CTS)
Diagnostic data can be written into the process image (depending on the parameterization)
Isolation voltage
U
TMB
(module bus/RS232) max. 1000 VDC
U
field
(field voltage/RS232) max. 1000 VDC
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