Scm9b, Isolated intelligent signal conditioning products, Specifications – Impulse SCM9B-D100 Series User Manual
Page 2
Isolated Intelligent Signal Conditioning Products
SCM9B
For information call 800-444-7644
108
D100 Series ASCII Command Set
Command and Definition
Typical
Typical
Command
Response
Message Message
($ prompt)
DI
Digital Input
$1DI
*0003
DO
Digital Output
$1DOFF
*
RD
Read Data
$1RD
*+00072.00
RS
Read Setup
$1RS
*31070142
RSU
Read Setup
$1RSU
*31070142
RZ
Read Zero
$1RZ
*+00000.00
WE
Write Enable
$1WE
*
Write Protected Commands
CZ
Clear Zero
$1CZ
*
RR
Remote Reset
$1RR
*
SU
Setup Module
$1SU31070142
*
TS
Trim Span
$1TS+00600.00
*
TZ
Trim Zero
$1TZ+00000.00
*
Setup
The D100 series are initiated at the factory using the Dataforth ASCII protocol.
This allows setup and configuration, including the Modbus device address, to
be easily performed using the Dataforth setup software or a dumb terminal. Each
D100 module must be properly configured before installation into a Modbus
system.
Utility Software
Complimentary Utility Software is included with each purchase order. The
software is compatible with Windows 95, 98, NT 4.0+, 2000 operating systems
and distributed on CD-ROM. The Utility Software simplifies configuration of all
user-selectable options such as device address, baud rate and filtering
constants.
Process Control Software
Modbus RTU protocol is supported by virtually all commercial process control
software programs available today. These programs operate on IBM and
compatible personal computers in the Windows 95, 98, NT and IBM OS/2
environments.
Specifications
Typical at T
A
=+25°C and nominal power supply unless otherwise noted
Analog
Single channel analog input.
Maximum CMV, input to output at 60Hz: 500Vrms.
Leakage current, input to output at 115Vrms, 60Hz: <2µA rms.
15 bit measurement resolution.
8 conversions per second.
Autozero & autocalibrationno adjustment pots.
Digital
8-bit CMOS microcomputer.
Digital scaling, linearization and calibration.
Nonvolatile memory eliminates pots and switches.
Digital filtering
Small and large signal with user selectable time
constants from 0 to 16 seconds.
Communications
Communications in MODBUS-RTU via RS-485 ports.
Selectable baud rates: 300, 600, 1200, 2400, 4800,
9600, 19200, 38400.
NRZ asynchronous data format; 1 start bit, 8 data bits,
1 parity bit and 1 stop bit.
Parity: odd, even, none.
User selectable channel address.
Up to 247 multidrop modules per host serial port.
Communications distance up to 4,000 feet (RS-485).
Transient suppression on RS-485 communications lines.
All communications setups stored in EEPROM.
Power
Requirements:
Regulated +5VDC ,
0.75W max (DIN-150, 2.0W max.).
Protected against power supply reversals.
Environmental
Temperature Range: Operating -25°C to +70°C.
Storage -25°C to +85°C.
Relative Humidity: 0 to 95% noncondensing.
D11x Voltage Inputs
Voltages: ±10mV, ±100mV, ±1V, ±5V, ±10V, ±100VDC.
Resolution: 0.01% of FS (4 digits).
Accuracy: ±0.02% of FS max.
Common mode rejection: 100dB at 50/60Hz.
Zero drift: ±1 count max (autozero).
Span tempco: ±50ppm/°C max.
Input burnout protection to 250VAC .
Input impedance:
≤
±1V input = 100M
Ω
min.
≥
±5V input = 1M
Ω
min.
D125 Current Inputs
Currents: 4-20mADC.
Resolution: 0.04% of FS.
Accuracy: 0.04% of FS.
Common mode rejection: 100dB at 50/60Hz.
Zero drift: ±1 count max (autozero).
Span tempco: ±50ppm/°C max.
Voltage drop: ±0.1V max.
D13x Thermocouple Inputs
Thermocouple types: J, K, T, E, R, S, B, C (factory set).
Ranges:
J = -200°C to +760°C
B = 0°C to +1820°C
K = -150°C to +1250°C
S = 0°C to +1750°C
T = -200°C to +400°C
R = 0°C to +1750°C
E = -100°C to +1000°C
C = 0°C to +2315°C
Resolution: ±1°.
Overall Accuracy (error from all sources) from 0 to +40°C
ambient: ±1.0 °C max (J, K, T, E).
±2.5 °C max (R, S, B, C)(300°C to FS).
Common mode rejection: 100dB at 50/60Hz.
Input impedance: 100M
Ω
min.
Lead resistance effect: <20µV per 350
Ω
.
Open thermocouple indication.
Input burnout protection to 250VAC.
Overrange indication.