Siemens ET 7Y Series Especificaciones descargar pdf (Pagina 58)

Addressing

3-10

ET 200S IM 151-7 CPU Interface Module

A5E00058783-04

User Data Transfer in STOP Mode

The user data in the intermediate memory is processed differently depending on

whether the DP master or the DP slave (IM 151-7 CPU) goes into STOP mode.

 If the IM 151-7 CPU goes into STOP mode: The data in the intermediate

memory (outputs only from the slave’s viewpoint) of the IM 151-7 CPU are

overwritten with “0”; i.e. the DP master or a recipient in direct communication

reads “0”.

 If the DP master goes into STOP mode: The current data in the intermediate

memory of the IM 151-7 CPU (inputs in the slave, outputs in the master) are

retained and can be read out in the user program of the IM 151-7 CPU.

S5 DP master

If you use the IM 308–C as a DP master and the IM 151–7 CPU as an I slave, the

following applies to the exchange of consistent data:

You must program FB 192 in the IM 308–C to enable the transfer of consistent

data between the DP master and the I slave. The effect of FB 192 is that the data

of the IM 151–7 CPU is only output or read out continuously in a single block.

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Siemens ET 7Y Series Especificaciones Pagina 58