Electro Industries Shark 100S, Руководство по установке и эксплуатации

Страница: 138 / 164

B: Modbus Map
Doc# E145721 MM-8
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Notes
1
2
3
4
5
6
7
8
9
10
11
12
current FS = CT numerator * CT multi p lier
voltage FS = PT numerator * PT multi p lier
p ower FS = CT numerator * CT multi p lier * PT numerator * PT multi p lier * 3 [ * SQRT(3) for delta hooku p ]
frequency FS = 60 (or 50)
p ower factor FS = 1.0
p ercentage FS = 100.0
angle FS = 180.0
13
14
If the p assword is incorrect, a valid res p onse is returned but the command is not executed. Use 5555 for the p assword if p asswords are disabled in the p rogrammable settings.
Writing this register causes data to be saved p ermanently in EEPROM. If there is an error while saving, a slave device failure exce p tion is returned and p rogrammable settings mode automatically
terminates via reset.
32-bit IEEE floating p oint number s p anning 2 registers. The lower-addressed register is the high order half (i.e., contains the ex p onent
All registers not ex p licitly listed in the table read as 0. Writes to these registers will be acce p ted but won't actually change the register (since it doesn't exist).
Meter Data Section items read as 0 until first readings are available or if the meter is not in o p erating mode. Writes to these registers will be acce p ted but won't actually change the register.
Register valid only in p rogrammable settings u p date mode. In other modes these registers read as 0 and return an illegal data address exce p tion if a write is attem p ted.
Not a pp licable to Shark 100, V-Switch 1, 2, or 3
M denotes a 1,000,000 multi p lier.
Meter command registers always read as 0. They may be written only when the meter is in a suitable mode. The registers return an illegal data address exce p tion if a write is attem p ted in an incorrect
mode.
Entities to be monitored against limits are identified by Modbus address. Entities occu p ying multi p le Modbus registers, such as floating p oint values, are identified by the lower register address. If any
of the 8 limits is unused, set its identifier to zero. If the indicated Modbus register is not used or is a non-sensical entity for limits, it will behave as an unused limit.
There are 2 set p oints p er limit, one above and one below the ex p ected range of values. LM1 is the "too high" limit, LM2 is "too low". The entity goes "out of limit" on LM1 when its value is greater than
the set p oint. It remains "out of limit" until the value dro p s below the in threshold. LM2 works similarly, in the o pp osite direction. If limits in only one direction are of interest, set the in threshold on the
"wrong" side of the set p oint. Limits are s p ecified as % of full scale, where full scale is automatically set a pp ro p riately for the entity being monitored:
Energy registers should be reset after a format change.
Reset commands make no sense if the meter state is LIMP. An illegal function exce p tion will be returned.
SINT32 / UINT32
FLOAT 32-bit signed / unsigned integer s p anning 2 registers. The lower-addressed register is the high order half
THD not available shows 65535 (=0xFFFF) in all THD and harmonic magnitude registers for the channel when V-switch=4. THD may be unavailable due to low V or I am p litude, or delta hooku p (V
only).
All 3 voltage angles are measured for Wye and Delta hooku
p s. For 2.5 Element, Vac is measured and Vab & Vbc are calculated. If a voltage p hase is missing, the two voltage angles in which it
p artici p ates are set to zero. A and C p hase current angles are measured for all hooku p s. B p hase current angle is measured for Wye and is zero for other hooku p s. If a voltage p hase is missing, its
current angle is zero.