Siemens Milltronics BW500/L - Page 137

Communications
11.5 Modbus RTU/ASCII Protocol
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
135
Register Map for BW500 and BW500/L
Map Legend
Description
Type:
Arbitrary classification of registers.
Description:
Brief description or title of associated register.
Start: Provides the starting address for the register(s)
where the parameter values are to be read from
or written to.
Number R: The number of registers required to read or write
the complete parameter value. Where the num-
ber of registers (6) are addressed in incrementing
sequence from the start register.
Parameter Values:
Refer to Parameter Values.
Read: Identifies the read / write capability for the regis-
ter being addressed.
Reference:
Provides reference documentation for the register
being addressed.
Type
Description
Start
# R
Parameter
Values
Read
Reference
Format Format
Word for 32
bit variables
40,062 1 0 - 1 r/w Refer to
Modbus
Register
Map (cont’d)
section
given below.
ID Device Iden-
tifier
40,064 1 2 r Refer to
Modbus
Register
Map (cont’d)
section
given below.
Handshak-
ing Area
(Parameter
Access)
Parameter
40,090
1
0-999
r/w
Refer to the
Modbus
Register
Map (cont’d)
section
given below.
Primary
Index
40,091 1 0 - 9 r/w
Secondary
Index
40,092 1 0 - 9 r/w
Format
Word
40,093 1 bit mapped r/w
Read Value
(word 1)
40,094 2 32 bits r
Write Value
(word 1)
40,096 2 32 bits r/w
Date and
Time
a)
YYYY
41,000
1
1996-2069
r/w
Refer to
the
Date and
MM
41,001
1
1 - 12
r/w