Technical data
13.1 Technical specifications
SIWAREX WP231
166 Manual, 07/2014, A5E31238908A-02
Table 13- 6 Technical specifications: Digital inputs
Number of inputs 4
Rated voltage 24 V DC
Supply voltage range max. 30 V DC
Power consumption at 24 V DC 4 mA
Voltage surge 35 V DC for 0.5 s
Logical signal level 1 (min) 15 V DC at 2.5 mA
Logical signal level 0 (max) 5 V DC at 1.0 mA
Sampling rate (FW) 10 ms
Filtering 0.2, 0.4, 0.8, 1.6, 3.2, 6.4 and 12.8 ms
Electrical isolation 500 V DC
Table 13- 7 Technical specifications: Real-time clock
Accuracy at 25 °C ± 60 s/month
Buffered period typ. 10 days at 25 °C
min. 6 days at 40 °C
Table 13- 8 Technical specifications: RS485 interface
Standard EIA-485
Baud rate up to 115 kbps*
Data bits 7 or 8
Parity even | odd | none
Stop bits 1 or 2
Terminating resistors (can be activated) 390 Ω / 220 Ω / 390 Ω
Electrical isolation 500 V AC
Transfer protocol ASCII for remote display from Siebert and Modbus
RTU)
Cable length ≤ 115 kbps max. 1 000 m
(fieldbus cable 2-wire, shielded, e.g. 6XV1830-0EH10)
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