Do-more T1H Series PLC User Manual, 1st Edition, Rev. C
6–8
Chapter 6: Specifications - Analog I/O Modules
T1F-16AD-1 - 16 Channel Analog Current Input
Specifications
Number of Channels
16, single ended (1 common)
Input Ranges
0–20mA, 4–0mA, -20 to 20mA
Resolution
14 bit (13 bit plus sign bit)
Module Addressing
16 input bits (X-not used);
16 input words (WX)
Frequency Response
-3db @ 500Hz, -20db / decade
Input Resistance
250
q
Absolute Maximum Ratings
8V max. Input
Conversion Time
5ms per channel
Linearity Error
±2 count max.
Input Stability
±1 count
Full Scale Error
(Offset Error not included)
16 counts max.
Offset Error
2 counts max.
Max. Full Scale Inaccuracy
(% of full scale);
all errors included
0.18% @ 25
!
C
0.36% @ 60
!
C
CPU Update Rate
1 channel per scan
Base Power Required
75mA @ 5VDC
External Module Power
Supply Req.
18–30 VDC, 50mA, class 2
Recommended Fuse
0.032 A @ 5VDC
Operating Temperature
0 to 60
!
C (32 to 140
!
F)
Storage Temperature
-20 to 70
!
C (-4 to 158
!
F)
Accuracy vs. Temperature
±50ppm /
!
C max. full scale
Relative Humidity
5 to 95% (non-condensing)
Environmental Air
No corrosive gases permitted
Vibration
MIL STD 810C 514.2
Shock
MIL STD 810C 516.2
Noise Immunity
NEMA ICS3-304
Weight
168g
T1F-16AD-1
0 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15
mm (in.)
Input points
Commons (not isolated)
8 9 10 111213 1415
0 1 2 3 4 5 6 7
) 5
1 .
3 (
0 8
) 4
1 .
2 (
3 .
4 5
) 1
0
. 1 (
7 .
5 2
9.2 (0.36)
8.1 (0.32)
8.1 (0.32)
89 (3.5)
COM 0
COM 1
COM 2
COM 3
V 0
V 1
V 2
V 3
83.3 (3.28)
Side View
Fuse
4–Wire
Current
Transmitter
Note:
V 0 and
V 1 internally
connected
Note:
V 2 and V 3 internally
connected to Commons
Fuse
2–Wire
Current
Transmitter
NOTES
:
1. Shields should be grounded at the signal source.
2. More than one external power supply can be used, provided all the power
supply commons are connected.
3. A Series 217, 0.032 A fast-acting fuse is recommended for 4–20 mA
current loops.
4. If the power supply common of an external power supply is not connected
to the 0 V terminal on the module, then the output of the external transmitter
must be isolated. To avoid “ground loop” errors, recommended 4–20 mA
transmitter types are:
– For 2 or 3 wire connections: Isolation between the input supply signal and
the power supply.
– For 4 wire connections: Isolation between the input supply signal, the power
supply and the 4–20 mA output.
Equivalent Input Circuit
0 – 20mA
20mA
0mA
8191
0
4 – 20mA
20mA
4mA
8191
1638
–20 to 20mA
20mA
–20mA
8191
–8191
0mA
Input Signal Ranges
Transmitter Supply
18-30 VDC
Module Supply
24 VDC
0 – 20mA
20mA
0mA
8191
0
4 – 20mA
20mA
4mA
8191
1638
–20 to 20mA
20mA
–20mA
8191
–8191
0mA
Input Signal Ranges
0
Equivalent Input Circuit
Equivalent Input Circuit
Input Range/Resolution
