MGE UPS Systems 250A Card MCM general status and measurements, # Bit Float Coeff Description

6. Appendices

Card MCM (general status and measurements)

The variables entered in registers 1 to 74 are whole numbers read on 16 bits.

The variables entered in registers 1 to 29 are also accessible in “floating” format on 32 bits (registers 257 to 314 in the “Float.” column of the table). The “floating” variables are read only.

Multiply each value in whole number format by the coefficient indicated in the “Coeff.” column of the table.

# Bit	Float.	R/W	NV	Coeff.	Description
1	257/258	R/W	NV	0.1	Energy consumed in kWh (least significant bit of the word)*
2	259/260	R/W	NV	6553.6	Energy consumed in kWh (most significant bit of the word)*
3	261/262	R		0.1	Total active power in kW
4	263/264	R		0.1	Total reactive power in kVAR
5	265/266	R		0.1	Total apparent power in kVA
6	267/268	R		0.0001	Total power factor
7	269/270	R		0.01	Average of the phase-to-phase voltages in the 3 phases in V
8	271/272	R		0.01	Average of the phase-to-neutral voltages in the 3 phases in V
9	273/274	R		0.1	Average of the current in the 3 phases in A
10	275/276	R		0.01	Frequency in Hz
11	277/278	R		0.1	Active power for phase A in kW
12	279/280	R		0.1	Active power for phase B in kW
13	281/282	R		0.1	Active power for phase C in kW
14	283/284	R		0.0001	Power factor for phase A
15	285/286	R		0.0001	Power factor for phase B
16	287/288	R		0.0001	Power factor for phase C
17	289/290	R		0.01	Voltage between phase A and B in V
18	291/292	R		0.01	Voltage between phase B and C in V
19	293/294	R		0.01	Voltage between phase C and A in V
20	295/296	R		0.01	Voltage between phase A and the neutral in V
21	297/298	R		0.01	Voltage between phase B and the neutral in V
22	299/300	R		0.01	Voltage between phase C and the neutral in V
23	301/302	R		0.1	Current in phase A in A
24	303/304	R		0.1	Current in phase B in A
25	305/306	R		0.1	Current in phase C in A
26	307/308	R		0.1	Neutral current in A
27	309/310	R/W		0.1	Average total active power in kW*
28	311/312	R/W		0.1	Minimum total active power in kW*
29	313/314	R/W		0.1	Maximum total active power in kW*
30 to 36		R/W	NV		Reserved for MGE UPS SYSTEMS
37		R/W	NV		Alarms
0					Stored overload alarms (bit set to 1). Reset by setting bit to 0.
1 to 3					Unused bits (set to 0)
4					Stored overvoltage alarms (bit set to 1). Reset by setting bit to 0.
5 to 15					Unused bits (set to 0)
38 to 42		R/W	NV		Reserved for MGE UPS SYSTEMS
43 to 48		R			Reserved for MGE UPS SYSTEMS
49		R	NV		Alarms
0					Non-stored overload alarms (bit set to 1).
1 to 3					Unused bits (set to 0)
4					Non-stored overvoltage alarms (bit set to 1).
5 to 15					Unused bits (set to 0)
50 to 74					Reserved for MGE UPS SYSTEMS

*: Values valid since the last reset. Reset is carried out by writing a whole number value.

34020201EN/AB - Page 31