Access the Message object

Access the Message object through the GSV/SSV instructions. Specify the message tag name to determine which Message object you want. The Message object provides an interface to setup and trigger peer-to-peer communications. This object replaces the MG data type of the PLC-5 processor.
Attribute
Data Type
Instruction
Description
ConnectionPath
SINT[82]
GSV SSV
Data to setup the connection path. The first two bytes (low byte and high byte) are the length in bytes of the connection path.
ConnectionRate
DINT
TIME32
GSV SSV
Requested packet rate of the connection.
MessageType
SINT
GSV SSV
Specifies the type of message. The value has a specific meaning:
  • 0. Not initialized
Port
SINT
GSV SSV
Indicates which port the message should be sent on. Each value has a specific meaning:
  • 1. Backplane.
  • 2. Serial port.
Timeout
Multiplier
SINT
GSV SSV
Determines when a connection should be considered timed out and closed. Each value has a specific meaning:
  • 0. Connection times out in four times the update rate. This is the default.
  • 1. Connection times out in eight times the update rate.
  • 2. Connection times out in 16 times the update rate.
Unconnected
Timeout
DINT
TIME32
GSV SSV
Timeout in microseconds for all unconnected messages. The default is 30,000,000 microseconds (30 s).
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