ProSoft Technology ILX69-PBM, Руководство пользователя

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Communication ILX69-PBM ♦ CompactLogix™ or MicroLogix™ Platform
User Manual PROFIBUS Master Communication Module
Page 64 of 113 ProSoft Technology, Inc.
Module Status Bits
Bit
Offset Structure
Member Data
Type Description
0 Reserved BOOL Reserved, set to 0
1 Reserved BOOL Reserved, set to 0
2 Reserved BOOL Reserved, set to 0
3 Reserved BOOL Reserved, set to 0
4 Reserved BOOL Reserved, set to 0
5 COM BOOL Communication; 0 = Not communicating, 1 = Communicating
6 RUN BOOL Run; 0 = Not running, 1 = Running
7 RDY BOOL Ready; 0 = Not ready, 1 = Ready

COM (Communication)
When this bit is set, the communication is started and the module is engaged in
cyclic data exchange with at least one of the connected slaves.

RUN (Run)
When this bit is set, the module is ready for communication. Otherwise, an
initialization error or incorrect parameterization has occurred. Further diagnostics is
carried out with the ProSoft fdt Configuration Manager configuration software.

RDY (Ready)
When this bit is set, the module is operational. The RDY bit should always be set by
the module. If this bit is not set, a system error has occurred and the communication
between controller and module is not possible.
HSR – Handshake Request Bits
Bit
Offset Data
Type Structure
Member Description
0 BOOL HsReq0 Slave Diag Request
1 BOOL HsReq1 Global Control Request
2 BOOL HsReq2 Reserved, set to 0
3 BOOL HsReq3 Reserved, set to 0
4 BOOL HsReq4 Reserved, set to 0
5 BOOL HsReq5 Reserved, set to 0
6 BOOL HsReq6 Reserved, set to 0
7 BOOL HsReq7 Reserved, set to 0
Using the handshake request bits, the user application can trigger different functions
supported by the ILX69-PBM. Every handshake request bit (HsReq) has a
corresponding handshake acknowledge bit (HsAck). It is located in the
Device Status
Register in the input array (see section Device Status Registers (page 61)).
If the module sets an HsReq bit unequal to the corresponding HsAck bit, the module will
execute the command. If the module sets the corresponding HsAck bit equal to the
HsReq bit, then the module has executed the command and the application can execute
another command.