Omron PROFIBUS DP GATEWAY Operation Manual page 86

Function Block Programming
The table below lists the Input and Output variables for the Operate function block.
Name
EN EN
Start Word StartWordOutput
PROFIBUS Out-
put data
Start Word StartWordInput
PROFIBUS Input
data
Unit No of device UnitNo
Command code CommandCode
Information RelatedInformation UINT
related to the
operation com-
mand
ENO ENO
Result of execu- ResponseCode
tion of the com-
mand
Busy flag BUSY
B-4 Read Function Block
The Read Function Block facilitates the transmission of a READ command to a specific temperature Controller
(refer to section 3-3-4 Free Communication Blocks ). The table below lists the specifics of this function block.
Item
Basic function Reads data from a Temperature Controller's variable area.
Symbol
Start Trigger
File name PRT1_SCU11_Read_Data.cxf
Function description Sends a Read Data command to the CS1/CJ1W-PRM21 PROFIBUS Master I/O addresses allo-
cated to the targeted Temperature Controller, specified by the Unit No. The data to be read is spec-
ified by the Variable Type and the Read Start Address.
Variable name Data
type
BOOL
UINT
UINT
UINT
UINT
BOOL
WORD
BOOL
Busy Flag
Start Word
Profibus output data
Start Word
Profibus input data
Unit No of TC
Variable Type
Read Start address from TC
Default Range
1 (ON): Function block started.
0 (OFF): Function block not started.
3000 Start Word of PROFIBUS Output data in
PROFIBUS Master Output data area.
3010 Start Word of PROFIBUS Input data in PROFI-
BUS Master Input data area.
0 #0 - #63 Unit number of device.
(0-99)
0 Variable type in device.
0 Specify the Write Start address.
1 (ON): Function block processed normally
0 (OFF): Function block not processed or
ended in an error.
Outputs the error code when execution ended
in an error in the communications command
level. Refer to section 3-3-4 Free Communica-
tion Blocks for more information.
Automatically turns OFF when processing is
completed.
Description
(BOOL)
EN
(UINT)
StratWordOutput ResponseCode
(UINT)
StartWordInput
(UINT)
UnitNo
(UINT)
VarType
(UINT)
ReadStartAddress
Appendix B
Description
(BOOL)
ENO
(WORD)
Response code from TC
(DWORD)
Data read from TC
DataRead
(BOOL)
Busy flag
Busy
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