SCADAmetrics EtherMeter EM-100 - EtherMeter Electrical Interface and Configuration; Wiring Diagram and Power Isolation Notes

12
4 ELECTRICAL INTERFACE
Hookup Wiring Diagram:
Model EM-100 EtherMeter®
Flow Meter Gateway for SCADA, Telemetry & Building Automation Systems
By SCADAmetrics®
US Patent No. 8,219,214
ETHERNET
SERIAL
RS.232
UL 62368-1
CSA C22.2
No. 62368-1
E112874
TESTED TO COMPLY
WITH FCC STANDARDS
PWR
TXD
RXD
RTS
DCD
M1.CLK
M1.DATA
M2.DATA
M2.CLK
POWER
1 PWR+
2 PWR-
10-36V
DC
Max: 275m A
Max: 2.5W
METER.1 METER.2
RS.485
14 M1.CLK
15 M1.DATA
16 M1.CMN
17 M2.CLK
18 M2.DATA
19 M2.CMN
20 485.A(-)
21 485.B(+)
22 485.CMN
MAC: 00:1D:C8:##:##:##
FLASH PROGRAMMING HEADER
(INTERNAL – FACTORY USE ONLY)
J4 J5
AIN1:
ON=4-20mA
OFF=0-5V
AIN2:
ON=4-20mA
OFF=0-5V
(INTERNAL)
LCD DISPLAY
RS-232
-N/C-
BACKL IGHT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
FACTORY
RESET
PWR+ PWR-
AUX3+ AUX3-
LOOP+
AIN1 + AIN1-
AIN2 + AIN2-
AUX1+ AUX1-
AUX2+ AUX2-
M1-TX
M1-RX
M1-CMN M2-TX
M2-RX M2-CMN
485-A 485-B
485-CMN
RS-485
120.TERM
SETUP
RS-485 RS-232
RUN
-N/C- -N/C-
SERIAL PORT
EXPLODED VIEW
1 DCD (Input), CAN ALSO FUNCTION AS CTS
2 RxD (Input)
3 TxD (Output)
4 DTR (Output), ALWAYS ASSERTED
5 GROUND (SERIAL ONLY, ISOLATED)
6 –
7 RTS (Output)
8 –
9 –
Figure 4A. Electrical Interface
POWER AND ISOLATION NOTES:
1. The EtherMeter requires a 10-36 VDC, Isolated-Output-Type Power Supply. The power
consumption of the EtherMeter is 2.50W Max (~1.50W Typical).