Slave Data Input (Asynchronous Mode Only) - Toshiba 2000 V Series Manual

4.4.3

Slave data input (Asynchronous mode only)

(1) Function
During operation in asynchronous mode, input data to a specified slave device is
read from the input data area of the DN611.
(2) Diagrammatic Representation (Function block)
REQ
CH
UNIT
SLOT
NODE
BS
ASREAD_DT
ASREAD_DT structure:
RDAT[0]
RDAT[1]
RDAT[2]
RDAT[3]
RDAT[4]
RDAT[5]
6F8C0845
DN_ASREAD
REQ
CH
UNIT
SLOT
NODE
BS
Input Argument
BOOL type Execution enabled
WORD type Channel No.
WORD type Unit No.
WORD type Slot No.
UINT type Node address
WORD type Bit strobe selection
1: Bit strobe
0: Polling
Structural data type Slave device input data
WORD type Slave device input data 1
WORD type Slave device input data 2
WORD type Slave device input data 3
WORD type Slave device input data 4
WORD type Slave device input data 5
WORD type Slave device input data 6
4.4 User Function Block for Slave Data Input/Output
DONE
ERR
STATUS
ASREAD_DT
Output Argument
DONE BOOL type
ERR BOOL type
STATUS WORD type
ASREAD_ Data
DT structural type
4
Completed
Error
Station status
Input data from
slave device
91