Siemens SIWAREX WP251 - Table 13- 10 Technical Specifications

Technical specifications
13.1 Technical specifications
SIWAREX WP251
206 Manual, 12/2015, A5E37203357A
Real-time clock
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 @40 °C
RS485 interface
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 Mod-
bus RTU)
Cable length ≤ 115 kbps max. 1 000 m
(fieldbus cable 2-wire, shielded, e.g. 6XV1830-
0EH10)
Ethernet
Table 13- 9 Technical specifications: Ethernet
Standard
IEEE 802.3
Transmission rate
10/100 Mbps (determined automatically)
Electrical isolation
1 500 V AC
Transfer protocol TCP/IP, Modbus TCP
(see /1/)
Autonegotiation
Yes
Auto MDI-X
Yes
Cable lengths
• Cat-5e UTP cable
(unshielded)
max. 50 m
• Cat-5e SF/UTP
cable (shielded)
max. 100 m
Dimensions and weights
Table 13- 10 Technical specifications:
Dimensions W x H x D
70 x 100 x 75 mm
Weight 300 g