Prosoft-technology PS69-DPS User Manual download pdf (Page 83)

PS69-DPS ♦ CompactLogix or MicroLogix Platform Reference

Profibus DP Slave Communication Module User Manual

ProSoft Technology, Inc. Page 83 of 108

May 9, 2014

Module Output Array

Device Command Register

The Device Command Register is transferred from the controller to the module

via the output data image. The Command register always lies in the first 4 Bytes

of the output region. Follows is the mapping for the Device Command Register.

Byte Offset

Structure Member

Data Type

Description

MCB

SINT

Module Command Bits

Reserved

SINT

Reserved

SINT

Reserved

ExtStaSelect

SINT

Extended Status Information Select

MCB := Module Command Bits

Bit Offset

Structure Member

Data Type

Description

Reserved

BOOL

Reserved

BOOL

Reserved

BOOL

Reserved

BOOL

Reserved

BOOL

Reserved

NRDY

BOOL

Application not ready

INIT

BOOL

Init

RST

BOOL

Reset

NRDY := Not Ready

With this bit, the user program can start or stop communication with the

PROFIBUS system. When this bit is set from the user program, the

communication between the module and connected network Master is stopped.

This control bit allows the user program to make a controlled start of the

communication with the PROFIBUS Master.

INIT := Init

With this Bit, the user program can execute a Reset (Warm Start) of the module.

This function is not implemented.

RST := Reset

The user program can use this bit to execute a Reset (Cold Start) of the module.

Attention: Using the Reset command will cause an immediate interruption in bus communication.

The connection to the network Master will be closed.

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