Satec PM175 User Manual

Chapter 2 Installation
Communications Connections
Series PM175 Powermeters
31
UP TO 32 POWERMETERS
CABLE MAXIMUM LENGTH 1000M
RS485RS232
RS485/422-232
+
SHLD
-
CONVERTER
SHLD SHLD SHLD
R
t
RS-485 MULTI-DROP CONNECTION
2
PM172-N
R
t
1
MASTER
RS-232
RXD TXD TX ENABLE RXD
RS-422 / RS-485
TXD
POWER
SUPPLY
COMMUNICATION CONVERTER
N
L
POWER
-
+
-
+
-
+
t
1,R
t
R 2=200-500 Ohm, 0.5W
2 (1)
2 (2)
PM172-N
2 (32)
PM172-N
Figure 2-33 COM2: RS-485 2 Wire Connection
-
4-20mA
9
8
COM.1 :
ATTENTION
Devices
Static-Sensitive
Static-Safe
Workstations
Handle Only at
POWER SUPPLY
RS-422/RS-485
16
+RX
COM.2COM.1
11
V
1513 14
69
N
1
5
-TX +TX-RX
V
MODEM
PROFIBUS
ETHERNET
RS-232/422/485 STANDARD
3
17
12
L/+
N/-
10
ANALOG IN/OUT :
0-1mA
0-20mA
V
-
+1mA
LOW DC
N
(24) 18-36VDC
(48) 36-72VDC
S
2
(12) 10-16VDC
+
7
3
4 WIRE CONNECTION
RS-485/422 COMMUNICATION PORT
TO COMMUNICATION
SYSTEM
_
+
+
_
Rx
Tx
Figure 2-34 COM2: RS-422/485 4 Wire Connection

Satec PM175 Specifications

General

Brand	Satec
Model	PM175
Category	Measuring Instruments
Language	English