Siemens SIMATIC Distributed I/O System DP/ASi Link Manual de Serviço descarregar pdf (Página 121)

C-5

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

”Actual is less than or equal to setpoint configuration” means that the DP/

ASi link compares the actual configuration with the setpoint configuration. If

the DP/ASi link detects any differences, it reacts in two different ways:

 If the DP/ASi link detects unconfigured ASi slaves, it behaves in the same

way as for ”actual is equal to setpoint configuration”.

 If ASi slaves are missing from the actual configuration compared to the

setpoint configuration – without unconfigured ASi slaves being present –

the DP/ASi link reports a configuration error. Data exchange is initiated,

however.

If no difference is detected between actual and setpoint configurations, the

DP/ASi link starts up normally.

Bytes 16 to 139 contain the parameterization data for the ASi slaves. The

method of determining the parameterization data is described in section C.2.

Precisely four bytes are assigned to every ASi slave.

Actual less than or

equal to setpoint

configuration

Parameterization

data for ASi slaves

Parameterization Message

1 2 ... 116 117 118 119 120 121 122 123 124 125 126 ... 151 152

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Siemens SIMATIC Distributed I/O System DP/ASi Link Manual de Serviço Página 121