ENGLISH
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t
2
INPUT FILTER
The filtering methods can be set for each pair of channels.
The filter consists of two independent low-pass filters:
-FIR Filter , in running average, able to increase the rejection of disturbances to the mains power line
frequency and to reduce measuring noise.
-IIR exponential Filter, with programmable time constant, able to dampen fluctuations.
If an
input variation higher than
is detected, both filters are forced to adapt rapidly to
step
0.75 mA
the new value, stabilising it only later on.
are available inside
Detailed information about filter settings
the
USER MANUAL
in the REGISTER
MODBUS section.
2
SOFTWARE CONFIGURATIONS
The
configuration software, allows the parameter setting.
EASY SETUP
This software is available for free on the Internet site: www.seneca.com.
Some parameters can also be set using
DIP-switches.
CONFIGURATIONS
Detailed information about list of MODBUS registers and their functions are available inside the
(Z-8TC).
USER MANUAL
MODBUS REGISTERS
A
B
GND
10
9
RS485
IDC10
7
8
2
485
RS
Connection for RS485 communication with the Modbus master system
through Z-PC-DINAL2-17.5 accessory.
Note:
the indication of the RS485 connection polarity is not standardised
and in some masters may be inverted
2
8 TC INPUTS
The module input accepts thermocouples type:
J, K, E, N, S, R, B, T.
For electrical connections it is recommended to
use shielded cable.
The two channels that are part of the same
terminal block have the ground terminal internally
connected and aren’t isolated between them.
However, 1.5 kV insulation is guaranteed between
channelsofdifferentterminalblocks.
ELECTRICAL CONNECTIONS
*
1
3
2
TC 2
TC 1
++
-
-
4
5
7
6
TC 4
TC 3
8
*
*
++
-
-
9
11
10
TC 6
TC 5
12
13
15
14
TC 8
TC 7
16
*
*
++
-
-
++
-
-
