1/13/2012 1:26 PM | |
Posts: 1547 Rating:
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Hi, also with VRRP S7 fault tolerant connection can't work. With this communication you have lets say "two warm link's". Both connections areesablished, but only one connection is transfering data. The switch over is very low. With TCP the response times are much higher. Also VRRP cases some interrupts of communication during fail over to the secound router. The only possiblity you have is to use tcp standard communication and a qincc redundant channel. Please follow also this thead: Communication problem between Server and S7 400 H PLC. |
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