123
saia-pcd.com
UHI &KDQQHO
$/(
ʊ(Q
T1ʊ
T1partʊ
T2ʊ
T2partʊ
7DULIIʊ
&RP(UUʊ
UHI &KDQQHO
ALD1
ʊ(Q
7RWDOʊ
3DUWLDOʊ
&RP(UUʊ
UHI &KDQQHO
AWD3
ʊ(Q
Ttotʊ
3DUWLDOʊ
CRatioʊ
&RP(UUʊ
Saia PCD®
L1
L2
L3
N
(PEN)
D /D
L1
L2
L3
N
(PEN)
N
L
S-Monitoring
1
5
2
3
4
Dedicated
room controller
HMI Visualization
and operating
Automation
stations
Cabinet
components
Consumption data
acquisition
4.4.4
Saia PCD® energy meter with Modbus interface
ALD1
ALE3
AWD3
ALD1
D5FD00A2A00
ALD1
D5FD00A3A00
ALE3
D5FD10C2A00
ALE3
D5FD10C3A00
AWD3
D5WD00C2A00
AWD3
D5WD00C3A00
Tariff
1 tariff
y
y
–
–
y
y
2 tariffs
–
–
y
y
–
–
Approvals
With MID
–
y
–
y
–
y
Without MID
y
–
y
–
y
–
Rated/
max. current
I
min
= 0.05 A, I
N
= 5 A, I
max
= 6 A
–
–
–
–
y
y
I
min
= 0.25 A, I
N
= 5 A, I
max
= 32 A
y
y
–
–
–
–
I
min
= 0.5 A, I
N
= 10 A, I
max
= 65 A
–
–
y
y
–
–
Measurement type
Direct measurement
y
y
y
y
–
–
Conversion up to 1500 A
–
–
–
–
y
y
Operating
voltage
230 VAC, 50 Hz
y
y
–
–
–
–
3 × 230/400 VAC, 50 Hz
–
–
y
y
y
y
Partial meter
Resettable
y
y
y
y
y
y
The integrated Modbus RTU interface complies with the IDA specification and is based on an RS-485 interface.
The measurement data from the energy meter can be connected to any desired Modbus master, in order to read
out the measured values. The relevant measurement data, such as energy, current, voltage, output (active and
reactive) and cosφ can be read out via the interface. On the display, the bus address can be set and the energy,
current, voltage and active output can be read directly. To connect the energy meters to Saia PCD® systems,
there are ready-made FBoxes, which are provided free of charge.
FBoxes available for
every Modbus meter
type
Modbus
Bus system Serial RS-485 interface
Log
Modbus RTU
as per IDA specification
Transmission
rates
2400, 4800, 9600, 19,200, 38,400, 57,600,
115,200 Baud. The transmission rate is detec-
ted automatically
Bit settings
8 databit, even parity, 1 stop bit
8 databit, odd parity, 1 stop bit
8 databit, no parity, 2 stop bit
The parity is automatically detected
Bus cable
Twisted, shielded, 2 × 0.5 mm
2
,
max. 1,200 m
Response time Write:
up to 60 ms
Read:
up to 60 ms
Technical data
Connection diagram for Modbus energy meters
Converter meter
three-phase AWD3
Direct measurement
three-phase ALE3
Direct measurement
single-phase ALD1
