PLX3x Series ♦ Multi-Protocol Gateways
SIE Protocol
User Manual
ProSoft Technology, Inc.
Page 159 of 215
January 25, 2018
Parameter
Value
Description
Enable
Disabled
Enabled
Conditional Write
Specifies if the command is to be executed and under what
conditions.
D
ISABLED
(0)
- The command is not executed in the normal
polling sequence.
E
NABLED
(1)
- The command is executed upon each scan of the
Command List if you set the
Poll Interval
to zero (0). If you set
the
Poll Interval
to a non-zero value, the command is executed
when the interval timer for that command expires.
C
ONDITIONAL
W
RITE
(2)
- The command execute only if the
internal data associated with the command changes.
Internal
Address
0 to 3999 (for register-
level addressing)
or
0 to 63999(for bit-level
addressing)
Specifies the database address in the gateway's internal
database to use as the destination for data from a read
command, or as the source for data for a write command. The
gateway interprets the database address as a bit address or a
16-bit register (word) address, depending on the Siemens
Industrial Ethernet’s
Data Type
used in the command.
If you use
Data Type
=
Bool
in the command list, then the
database address is interpreted as a bit address.
For any other data types, the database address is
interpreted as a 16-bit word (register) address.
Poll Interval
0 to 65535
Specifies the minimum interval between executions of
continuous commands. The value is in tenths of a second.
Therefore, if a value of 100 is entered, the command will execute
no more frequently than once every 10 seconds.
Reg Count
Command-dependent
Specifies the number of 16-bit registers or binary bits transferred
by the command. The range depends on the Siemens processor
and the type of command. See SIE Maximum Register Counts
(page 174).
Swap Code
No Change
Word Swap
Word and Byte Swap
Byte Swap
Specifies if and how the gateway rearranges the order of bytes
in data received or sent. This option exists to allow for the fact
that different manufacturers store and transmit multi-byte data in
different combinations. This parameter is helpful when dealing
with floating-point or other multi-byte values, as there is no one
standard method of storing these data types. You can set the
parameter to rearrange the byte order of data received or sent
into an order more useful or convenient for other applications.
N
O CHANGE
(0)
- No change is made in the byte ordering (1234 =
1234)
W
ORD
S
WAP
(1)
-The words are swapped (1234=3412)
W
ORD AND
B
YTE
S
WAP
(2)
- The words are swapped, then the
bytes in each word are swapped (1234=4321)
B
YTE
S
WAP
(3)
- The bytes in each word are swapped
(1234=2143)
These swap operations affect 4-byte (or 2-word) groups of data.
Therefore, use data swapping only when using an even number
of words, such as 32-bit integer or floating-point data.
Node IP
Address
xxx.xxx.xxx.xxx
Specifies the IP address of the Siemens processor being
addressed by the command.
PLC Type
Manual TSAP,
S7-300/S7-400/S7-
1200
Specifies the type of Siemens processor being addressed by the
command.
