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ProSoft Technology 5204SE-MNET-PDPMV1 User Manual

Page 119

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Reference 5204SE-MNET-PDPMV1

♦ ProLinx Gateway

User Manual

Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master


ProSoft Technology, Inc.

Page 119 of 235

December 22, 2009

Variable Name

Size/Type Description

Out - MailBoxData

Multi-variable
nested DDT

For details, see Modbus DDT (page 98).

Out - GetLiveList

1

Single-Bit
Boolean

This is the bit your control and sequencing logic will use to
trigger a message to tell the PROFIBUS Master provide a list
of active slave nodes. Set this bit to one (1) whenever no
other messages are active and you want to send this acyclic
message.

Out - Timeout

1

16-bit Integer

Used to hold the amount of time in milliseconds to wait for a
response to the Modbus TCP/IP command before assuming
a communication error has occurred and setting the In-
MessageError status bit

In - StationsStatus[ ] 127 element

Byte Array

Each byte will contain one of the following codes indicating
type of node present at that node address:

00h: Slave Station

01h: Master Station not yet ready for Token ring (station
physically attached to the bus but not configured or polling)

02h: Master Station ready to enter Token ring (station is
configured but not polling; there is not yet any Token
transmission)

03h: Master Station in Token Ring (Token transmission
through the station; station is fully operational)

04h: Station does not exist

In - Fault

1

16-bit Integer

For details on Fault Codes, see Acyclic Message Status
Word (page 218).

In - Return Code

1

16-bit Integer

For details, see Return Codes (page 219).

In - Message Done

1

Single-bit
Boolean

The DFB will set this bit when the Modbus TCP/IP response
is successfully received.

In - Message Error

1

Single-bit
Boolean

The DFB will set this bit when the Modbus TCP/IP response
is not successfully received. When this bit is set, it indicates
your control and sequencing logic should retry the command.