Operating Modes Of Piel256H; Functions Of Piel256H - Siemens SITRANS PCS 7 Function Manual

Driver blocks
18.3 PiEl256H
The parameters to be read from the module are specified by means of the block inputs.
Parameter
SlotHart
ReqByte0..3 Request bytes that must be transmitted when sending the HART command to the
NumReqB
DataType
Cmd
LenUsrDat
Offset
Startup characteristics
This block has no startup characteristics.
Status word allocation for Status parameter
This block does not have the Status parameter.
18.3.2

Operating modes of PiEl256H

This block does not have any operating modes.
18.3.3

Functions of PiEl256H

Functions of PiEl256H
The functions for this block are listed below.
824
Meaning
Number of the slot (channel) within the AI or AO module to which HART device is
connected in the HW Config
module, if required
Number of request bytes sent
Specification of the data type of the parameter to read and of the output at which the
parameter is made available:
1 = data type '101' (Simatic: Real with Qualitycode), output: OutRealQC
2 = data type 'Float' (Simatic: Real), output: OutReal
3 = data type 'Uns8' (Simatic: Byte), output: OutByte
4 = data type 'Uns16' (Simatic: Word), output: OutWord
5 = data type 'Uns32' (Simatic: DWord), output: OutDword
Number of HART command with which the data record is read
Length of the read data without header of the HART protocol
Start address of the parameter in the read data record without the header of the HART
protocol, e.g., as of byte 12
SITRANS Library for PCS 7
Function Manual, 05/2019, A5E35351976-11