Softing dataFEED uaGate 840D, User Manual

Page: 36 / 47

32
© Softing Industrial Automation GmbH
dataFEED Gateway - User Manual
<Area>
Syntax
Abbreviation
Number Orientation* Access
Rights
Discrete Inputs I
E
DI
DE
1xxxxx BIT read
Discrete Outputs A
O
Q
DA
DO
DQ
0xxxxx BIT read / write
Input Register ER
IR
3xxxxx WORD read
Register
(Holding Register) R
HR
4xxxxx WORD read / write
Discrete Inputs Octal
** J - BIT read
Discrete Outputs Octal
** P - BIT read / write
* BIT-oriented means that one bit is addressed per physical address. WORD-oriented means that one word (16
bits) is addressed per physical address.
** Input of the start address is octal, which means that the number 8 and 9 are invalid characters. The address is
managed internally by decimal point and must be considered for logger and status.
Discrete inputs and outputs are assigned 1 bit in the PLC. During reading and writing they are processed as an 8
bit value.
This means that reading and writing of single bits is not supported.
The ranges can be addresses using the above character strings or a number. For example, a discrete input can be
addressed both by
E and the number 1 .