DEWA

The Siemens SIMATIC S7 is connected via a redundant Sinec-H1 bus. Communication between the protocol converter and SIMATIC S7 was implemented with the XMAT protocol and Sinec-H1 for the transport layer.
The uplink connection is based on IEC 60870-5-101 in unbalanced mode.
The protocol converters operate in redundant communication with reciprocal monitoring via their own RS232 connection (R) (hot standby). If communication via the active converter fails, the channel switch (CS) automatically switches to the other converter.
The protocol converters are configured with a separate PC via remote TCP/IP access.

Background

The lead contractor was Siemens Pakistan, who is responsible for delivering, installing and commissioning the THANYA & EMAAR 132/11 kV substations.
THANYA & EMAAR actually belong to the utilities provider DEWA (Dubai Electricity and Water Authority), formed as a result of a 1992 takeover of Dubai Electric Company and Dubai Water Department.
In 2003, DEWA supplied more than 3,800 MW, delivered via 9744 substations (400 KV to 6.6. KV) and a power grid of 2,341 km length (1,398 of which was underground). 

For further information please go to: Dubai Electricity and Water Authority (DEWA)

Used Products

ipConv

Universal protocol converter for highest degree of flexibility Details...

Used Protocol Stacks

Hardware

	IPC194 19" 4HU	The robust and flexible industrial PC. This PC industrial PC can be extended about a passive backplane with a high number of ISA and PCI cards. Details...
	CS	Channel switch for coupling of two redundant devices to one communication line Details...