Siemens MD-12HD, User Manual, Page: 55 / 74

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System
The term
“ System” refers to registers defining the characteristics of the entire circuit board. System
registers report the same value independent of the slave address. Under BACnet structured view the
system points are grouped together.
Configuring Element and Channel Register for Service Types
The ViewPoint HD software enforces all element configurations to form a valid electrical system.
Configurations performed by remote systems may produce unexpected results if configurations are
internally inconsistent. The following tables document how to configure element and channel registers for
each service type. Every register should be explicitly written.
Red Text indicates Required Values, Purple Text indicates Suggested Defaults, if this data is not known.
Modbus Absolute Address/BACnet Object Assignments for Setting up Service Types
REGISTER
TEMPLATE
Service Type 2207
V_Input 2217
Description 2617
Channels Volt Ref CT Type Range Phase Shift CT Multiplier CT Sign
CH1 2220 2223 2224,2225 2224,2225 2221,2222 2226
CH2 2229 2232 2227,2228 2233,2234 2230,2231 2235
CH3 2238 2241 2236,2237 2242,2243 2239,2240 2244
Configurations
4 Wire 3
ɸ
(Wye)
Service Type 1
V_Input 1 or 2
Description 31 Char
Channels Volt Ref CT Type Range Phase
Shift
CT Multiplier CT Sign
CH1 L1
– N
[1] mV [1] or
RōCoil
[2] Any > 0A -3.0
˚ to +3.0˚
Any > 0 [1] 0 or 1
CH2 L2
– N
[2] mV [1] or
RōCoil
[2] Any > 0A -3.0
˚ to +3.0˚
Any > 0 [1] 0 or 1
CH3 L3
– N
[3] mV [1] or
RōCoil
[2] Any > 0A -3.0
˚ to +3.0˚
Any > 0 [1] 0 or 1