ProSoft Technology ProTalk PTQ-104C User Manual page 50

Module Configuration
12TUser Manual
Command Control Blocks
Block identification codes greater than 9900 are utilized to perform special
functions in the module. Each control block recognized and used by the module
is defined in the following topics.
Command Codes
9250
9251
9901
9902
9903
9950
9970
9971
9999
Note: The command code in the I/O area is also referred to as the block ID.
Implementing Ladder to Support Special Functions
In order to use Special Functions, some form of control logic must be
implemented. The following section uses structured text language to illustrate
how a typical function might be implemented.
Example: Rebooting the Module.
MyTrigger is a variable that triggers this logic
OutputControl variable array starts at register 4000001
The first instruction guarantees that the processor requests this block for only
one scan.
The second instructions sets the Block Number (9999 = ColdBoot) and then sets
the sequence number to 1.
IF MyTrigger>0 AND OutputControl1[1]> 0 THEN
OutputControl1[0]:= InputData[0];
OutputControl1[1]:=0;
MyTrigger :=0;
END_IF;
IF (MyTrigger=9999)OR (MyTrigger=9998) OR (MyTrigger=9250) THEN
OutputControl1[1] :=MyTrigger;
Temp:=WORD_TO_INT(OutputControl1[0]);
Temp:=Temp+1;
OutputControl1[0]:=INT_TO_WORD(Temp);
END_IF;
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Descriptions
Status Block
Client X Status Data
User Constructed Command
Command Control Block (Add command to Command List Queue)
Event Messages from Master port
Command List Error data
Set PLC time using module's time
Set module's time using PLC time
Cold Boot Request from PLC (Block contains no data)
49TPTQ-104C ♦ 48TQuantum Platform
47TIEC 60870-5-104 Client
ProSoft Technology, Inc.
March 4, 2013