Siemens SIMATIC TI500 - A.1 Corresponding Data Types; Data Type Identification

Data Type Identification
A-2
TIWAY I Gateway User Manual
A.1 Corresponding Data Types
This appendix provides information on which Siemens PLCs are supported
by the Gateway , and how SIMA TIC

TI

data types correspond to those of
the host systems. Also included in this appendix are a list of features added
to the latest release of the Gateway and a list of hardware specifications.
T able A-1 shows the correspondence between data types configured in the
host systems and the data retrieved from SIMA TIC TI PLCs.
T able A-1 Data T ype Identification
PLC Data Type Fisher
Data Type
Foxboro
Data Type
Honeywell
Data Type
V-Memory
(12 LSBs*)
N/A 12-bit Binary from
Holding Registers
N/A
WX-Memory
(12 LSBs*)
N/A 12-bit Binary from
Input Registers
N/A
Y (discrete outputs) or
C (control relays)
Digital Points Discrete Coils Digital Outputs
X (discrete inputs) N/A Discrete Contacts Digital Inputs
V-Memory Words Input Register 16-bit W ord from
Holding Registers
Analog Outputs
WX-Memory N/A 16-bit W ord from
Input Registers
Analog Inputs
V-Memory N/A N/A Accumulated
Value
*Least significant bits