Siemens Simatic SM331 Getting Started page 7

The following current transducers can be used for the acquisition of analog
signals:
Table 2-4 Current transducers
Quantity Article
1 2-Wire current transducer
1 4-Wire current transducer
Note
This „Getting Started" describes only the application of 4 – 20 mA current trans-
ducers in the 2-Wire or 4-Wire model. If you want to use other transducers, then
you have to wire and parameterize the SM331 differently.
Furthermore, the following tools and materials are necessary:
Table 2-5 General tools and materials
Quan- Article
tity
Multiple M6-bolts and nuts (Length depending on the
mounting place)
1 Screwdriver with blade width 3,5 mm
1 Screwdriver with blade width 4,5 mm
1 Wire cutting pliers and tools for stripping
1 Tools to mount the cable end sleeve
Wire for grounding the rail, 10 mm
X m
Ring terminal with 6,5 mm hole, length according to
local conditions.
X m Flexible wire with 1mm
end sleeves, Form A in 3 different colors – blue,
red and green
X m 3-wire power cord (AC 230/120V) with protective
contact socket, length according to local conditions.
1 Calibration device (Measuring instrument for com-
missioning, that can measure and supply current)
5
2
diameter.
2
diameter with fitting wire
Getting Started SM331 AI 8x12bit Part1: 4-20mA
Order number
Depending on the
manufacturer
Depending on the
producer
Order number
standard
standard
standard
standard
standard
standard
standard
standard
Depending on the
manufacturer
A5E00253410