309
Analog Input Terminals
Section 5-7
Input Specifications
Slave Components
The following diagram shows the main components of the SRT2-AD04 Analog
Input Terminal. The functions of these components are described below.
Item
Specification
Voltage input
Current input
Input signal range
0 to 5 V
1 to 5 V
0 to 10 V
–10 to 10 V
0 to 20 mA
4 to 20 mA
Input signal range settings for Input 0 and Input 1 are
shared.
Input signal range settings for Input 2 and Input 3 are
shared.
Max. signal input
±
15 V
±
30 mA
Input impedance
1 M
Ω
min.
Approx. 250
Ω
Resolution
1/6000 (Full scale)
General
precision
25
°
C
±
0.3%FS
±
0.4%FS
0 to 55
°
C
±
0.6%FS
±
0.8%FS
Conversion time
1 ms/point (4 ms/4 points, 3 ms/3 points, 2 ms/2 points, or
1 ms/1 point)
AD conversion output
data
Binary data
−
10 to 10 V: Full scale F448 to 0 to 0BB8 Hex
Other: Full scale 0000 to 1770 Hex
Averaging Function
Can be set (with DIP switch)
Burnout detection func-
tion
Available
Insulation method
Between analog input and communications line: Photo-
coupler
Between each analog input signal: Non-insulated
DIP Switch SW101
Open the cover to reveal DIP switch SW101.
The DIP switch's pins have the following functions:
Pins 1 and 2: Number of input points setting
Pin 3: Communications mode setting
Pin 4: Reserved (Always OFF.)
Pins 5 to 8: Node number setting
CompoBus/S Indicators
Indicate the status of the Slave
and communications.
DIP Switch SW102
Open the cover to reveal DIP switch SW102.
The DIP switch's pins have the following functions:
Pins 1 to 3: Input range setting for Inputs 0 and 1
Pins 4 to 6: Input range setting for Inputs 2 and 3
Pin 7: Averaging setting
Pin 8: Reserved (Always OFF.)
Mounting Screw Holes
Used when screwing the Unit to a control panel.
DIN Track Mounting Hooks
Used when mounting the Unit to a DIN track.
Terminal Block
Used to connect CompoBus/S communications cables,
communications power supply, and input devices.