Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) Algorithms, Tables and Sequential Logic Functions - Manual (Page 88)

Logic Functions - Book 2
SUPERVISORY MESSAGE BLOCK
8-80
Message Type ................................................................................................................... C – –
Specifies the type of transaction the block should attempt when it is triggered.
Read Message Types:
READ Sends a read request, and when the response is received, stores it in
the Result field.
READ_W_QUAL Sends a read with quality request, and when the response is
received, stores the data and its quality in the Result and Result
Quality fields.
Write Message Types:
WRITE Sends a write message. Write messages to MOD30 instruments will
gain control of the loop the variable is under, send a write message to
the attribute, and then release control of the loop. Write messages to
other MODCELL units will not take control of the loops; the only
message sent will be a write message.
SET Sends a set message. Set messages are the same as write
messages to other MODCELLS except the write is directed to an
attribute within this MODCELL unit. The processing of the set
message is the same as if it were from an external source, i.e.; the
destination block's message handler will handle it.
TUNE Sends a tune message. Tune messages to MOD30 instruments will
gain control of the loop the variable is under, send a tune message to
the attribute, and then release control of the loop.
CONFIG Sends a configure message. Configure messages to MOD30
instruments will put the instrument into the unconfigured state, send
a configuration write message, and then put the instrument into the
configured state. The configure message will request to be the
configuring source and will only be allowed if there is no current
configuring source for that instrument.
D-CONFIG Sends a demand configure message. A demand configure message
is the same as a configure message except that it will always attain
the configuring source.
Message Destination ........................................................................................................ C – –
The message destination information is configured in this block and is used to define the
destination of the write message (write, tune, set, cfg, or demand_cfg), or the destination of
the read request (and source of the message response) for read and read with quality
messages.
Instrument Type Instrument types are: Controller, Recorder, Sequence & Logic Unit,
Math Unit, and Modcell.
Instrument Number Instrument numbers are: 0 to 15. This number represents the ICN
address of the instrument receiving the message.
Port Number Port Numbers are: None, or 1 to 3. This number represents which
ICN block should transmit the message.
Attribute Address Attribute addresses for instrument types Modcell and SLU are [Block
mnemonic][occur],[block attr].