Technical data

74
W&T
3.10.2 Modbus variables for Web-IO Analog In/Out
All address information is in hex format.
There are various Modbus memory ranges for the Web-IO:
. Bit range (starting at Address 1000 or 1800)
. 16-bit range (starting at Address 2000),
. 32-bit range (starting at Address 5000, 6000 or 7000),
. 8-bit range (Exception Status, no address).
Addressing is done in the bit-range, i.e. 1 bit requires an
address. In the 16-bit and 32-bit range addressing is by the
word (2 bytes).
The analog inputs are located in the 32-bit range starting at
Address 5036 (example for 5766x: 5036 and 5038). The values
are in percent with 3 places following the decimal point and are
considered relative..
Value dec. hex. 4-20mA 0-10V
0% 0 0x0000 0000 4 0
1°% 10 0x0000 000A 4,0016 0.001
1% 1,000. 0x0000 03E8 4.16 0,1
10% 10,000 0x0000 2710 5,6 1
65.5% 65,535 0x0000 FFFF 14.4856 6.55
65.5% 65,536 0x0001 0000 14.4857 6.55
100% 100,000 0x0001 86A0 20 10
120% 120,000 0x0001 D4C0 23.2 12
The analog outputs are located in the 32-bit range starting at
Address 5046 (example for 5766x: 5046 and 5047). The values
(see above) are in percent with 3 places following the decimal
point.
The alarms are located in the bit range starting at Address
1040 (example for 5766x: 1040 bis 1048), in the 16-bit range
at 2004 and in the 32-bit range at Address 5004. The alarm
trigger bits lie in the bit range starting at Address 1800.