Setup guide

OSx Migration Cookbook August 30, 2006

5 – Networking

Network Types

Tiway

H1/Sinec TF

Ethernet/TCP/IP

Tistar, PCS/OSx, and PCS 7 use three different network/protocols

for communications. Tistar uses the proprietary network called

Tiway to communicate with PLCs. PCS/OSx and PCS 7 use

H1/Sinec TF and S7. Additionally, PCS/OSx and PCS 7 use

Ethernet/TCP/IP to communicate among stations.

Migrating a Tistar system involves converting the PLCs from

Tiway to H1/Sinec TF. Simatic TI505 PLCs communicate over H1.

The Tiway NCM Module in each PLC is replaced with CP1434TF

module.

H1 is a network that is used to communicate with Siemens older

PLCs. It uses the Sinec TF protocol. H1 uses the same hardware as

Ethernet. That means any wire that can be used for Ethernet can be

used for H1. Additionally, H1 communications can occur over the

same wire being used for TCP/IP communications. This means that

PCS 7 to PLC communications can be integrated with other

commonly used networks at your site. See below about concerns

concerning network isolation and security.

Station to station communications in PCS/OSx and PCS 7 occurs

via Ethernet using the TCP/IP protocol. OSx uses the same cables

to provide communications between stations and between stations

and PLCs. It also supports dual redundant networks. When two

networks exist PLC communications goes over one network and

station to station communications goes over the other.

PCS 7 uses a different paradigm. One or two Siemens CP1613

cards is required in each server that will communicate with Simatic

TI505 PLCs. That card is only used for PLC communications. A

separate network card must be installed for communications with

clients. This separate card can be any Ethernet TCP/IP card

supported by Microsoft Windows. The cable from each card can

connect to the same physical network so that Sinec TF and TCP/IP

communications occur over the same wire. Normally these are

connected to separate networks to increase performance. H1 can be

redundant; PCS 7 could be connected to three networks.