CAAPE User's Manual - ALSTOM Signaling Inc.

Simulator ReferenceFunction: XMIT_NVSER_POSN( port, position )Transmit the data in the indication specified by its serial port and position.• port is the serial port from 1 to max.• position is the zero-based position of the message.For example:* Transmit the second indication on port 3:CALL XMIT_NVSER_POSN( 3,1 )12.4.4. TWC/NVTWC Special Message FunctionsThese give the user access to TWC / NVTWC serial messages in non-vital applications.They can be used to help simulate the operation of special messages in someprotocols.TWC / NVTWC messages are identified by their board, channel, and position in the listof messages of a given type which have been assigned to the channel.Function: GET_NVTWCSP( board, channel, pos, message_bit, return_value )Returns the value of the specified bit in a special message.• board is the TWC/NVTWC board.• channel is the TWC/NVTWC channel.• pos is the zero-based position of the message in the list of special messagesassigned to the channel.• message_bit is the message bit, where 1 is the first bit.• return_value is the name of a Boolean variable which gets the value of the specialmessage bit.For example:* Get the fourth bit of the third special message for TWC board 1, channel 2CALL GET_NVTWCSP( 1,2,2,4,NEWVAL )P2512A, Rev. Oct/09 12–25 Alstom Signaling Inc.