Do-more T1H Series PLC User Manual, 1st Edition, Rev. C
6–6
Chapter 6: Specifications - Analog I/O Modules
T1F-08AD-1 - 8 Channel Analog Current Input
Specifications
Number of Channels
8, single ended (1 common)
Input Ranges
0–20mA, 4–20mA, -20 to 20mA
Resolution
14 bit (13 bit plus sign bit)
Module Addressing
8 input bits (X-not used); 8 input words (WX)
Frequency Response
-3db @ 500Hz, -20db / decade
Input Resistance
250
q
Absolute Maximum Ratings
8V max. Input
Conversion Time
(Default: Normal Mode)
Normal Mode: 5ms per channel
Fast Mode: 0.5 ms per channel
(Fast Mode supported in module hardware
version B or later, and only when using this
analog module with the T1H-EBC(100) or
T1H-PBC control module)*
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, Series 217 Fast Acting
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
136g
T1F-08AD-1
0 1 2 3 4 5 6 7
0 – 20mA
20mA
0mA
8191
0
4 – 20mA
20mA
4mA
8191
1638
–20 to 20mA
20mA
–20mA
8191
–8191
0mA
Input Signal Ranges
0
T1F–08AD–1
1
2
3
4
5
6
7
0
1 2 3 4 5 6 7
0
48 (1.89)
) 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)
mm (in.)
8.1 (0.32)
Input points
Commons (not isolated)
83.3 (3.28)
2–Wire
Current
Transmitter
Equivalent Input Circuit
Fuse
Fuse
4–Wire
Current
Transmitter
Note
: V1 internally
connected to Commons
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 0V 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.
0 – 20mA
20mA
0mA
8191
0
4 – 20mA
20mA
4mA
8191
1638
–20 to 20mA
20mA
–20mA
8191
–8191
0mA
Input Signal Ranges
Module Supply
24 VDC
Transmitter Supply
18-30 VDC
0 1 2 3 4 5 6 7
COM 0 COM 1
V 0 V 1
Side View
0
Equivalent Input Circuit
Equivalent Input Circuit
Input Range/Resolution
* Note: T1H-PBC was
discontinued 8/2020; no
replacement available
