DT_ELMC-V3-EN_REV-B.1_L.pdf - 第25页

ELECTROVA P ® E LMC 25 3.8 .1 Remote information board The contact can be chan ged to NO or N C by wi ring according to the following diagrams (e .g. wiring on 30 & 31 = N O cont act). 3.8 .2 RS485 – Hardwar e connec…

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ELECTROVAP® ELMC
24
Up(V) = 3x380–690Vac (50-60Hz)
OPTION : Transformer : sec : 2x115V
ELMC
3
4
1
2
L
1
L
2
L
3
N
L
Up(V)
Electrical
isolator
+
Protection
OPTION
Transfo.
100 VA
sec
prim
F
ELECTROVAP® ELMC
25
3.8.1 Remote information board
The contact can be changed to NO or NC by wiring according to the following diagrams (e.g. wiring on 30 & 31 = NO
contact).
3.8.2 RS485 – Hardware connection
RS485 connection must be plugged on the J2 connector:
• Terminal 1: Data -
• Terminal 2: Data +
• Terminal 3: GND
The SW1 switch is used to turn line resistance on or off. Depending on your
needs, these resistances can be activated or deactivated (see diagram).
X22 Connector (36-37-38): Remote
steam production dry contact.
X21 Connector (33-34-35): Remote
general fault dry contact.
X20 Connector (30-31-32): Remote tank
maintenance dry contact.
1
2
3
4
3
2
1
J2
SW1
On
Off
K4A
X10
Main board
SW1–2
J2
1 : Data –
2 : Data +
3 : GND
+5V
680
SW1–3
120
SW1–1
680
Main board
Ref : 500102
X18
Ref 500400
500400
X23
X20
X22
X21
X2
0
30 31 32
X2
1
33 34 35
X2
2
36 37 38
NO
NC
NC
NC
NO
NO
Fig. B 3-8.
Fig. A 3-8.
ELECTROVAP® ELMC
26
3.8.3 MODBUS RTU and BACNET MSTP communication parameters
Modbus RTU
Bacnet MSTP
Speed of communication
2400 / 4800 / 7200 / 9600 (default) / 14400 / 19200 / 28800 / 38400 / 57600 /
115200 / 230400
Packet size
8 bits
Parity Bit
Not
Stop bit
2
1
Timeout response
5000ms (5sec)
Time between requests
(After a response received)
Min. 100ms
Standard
3.8.4 Communication protocol for RS485 interface - MODBUS and BACNET
Modbus
Register
Address
Bacnet Object
Class / instance # / ID
(hex)
Description
Value
10001
BI
0
00C00000
Contactor
1 = production -- 0 = no production
10002
BI
1
00C00001
High-level detection
1 = reached-- 0 = no reached
10003
BI
2
00C00002
High limit switch
1 is opened -- 0 is closed
10004
BI
3
00C00003
Fill valve
1 = filling – 0 = no filling
10005
BI
4
00C00004
Drain valve
1 = draining -- 0 : no draining
10006
BI
5
00C00005
relay X10 (term. 3-4): Blower pack
/ remote ON/OFF, service, default
1 : relay ON -- 0 : relay OFF
10007
BI
6
00C00006
maintenance returns
1 is ON -- 0 is OFF
10008
BI
7
00C00007
Alarm returns
1 is ON -- 0 is OFF
1
BO
0
01000000
On/Off BMS command
1 = ON : Start requested / 0 = Off: Stop Unit
2
Bv
1
01400001
Not used
Not used
3
Bv
2
01400002
option 1 (with SB card 8 relays)
1: ON -- 0: OFF
4
Bv
3
01400003
option 2 (with SB card 8 relays)
1: ON -- 0: OFF
5
Bv
1
01400001
option 3 (with SB card 8 relays)
1: ON -- 0: OFF
6
Bv
2
01400002
option 4 (with SB card 8 relays)
1: ON -- 0: OFF
30001
Have
0
00000000
Type unit
1: Steam Bath, 2: ELMC,3: CMC, 13: EHU 750
30002
Have
1
00000001
Register version
1
30003
Have
2
00000002
Current
10 x (A)