D3251数字变送器 美国omega
OMEGABUS Computer-to-Analog OutputModules
D3000 and D4000
1年保修 OmegaCare
OMEGABUS Computer-to-Analog OutputModules
D3000 and D4000:OMEGABUS Computer-to-Analog OutputModules
D3131
Analog Output Ranges: 0-1 V, ±1 V, 0-5 V, ±5 V, 0-10 V, ±10V, 0-20 mA, 4-20 mA
Programmable High/Low Output Limits
500 V rms Output Isolation
Scaling in Engineering Units
12-Bit Resolution
Baud Rates: 300 to 38,400
Output Protection: 240 Vac (Current Output), ± 30 V (Voltage Outputs)
值和D4000计算机模拟输出接口被设计成安装于主机遥控和标准的RS-232和RS-485串口通信。简单的ASCII命令用于模拟转换器，是扩展提供了常用的电流和电压范围的12位数字控制。一个板载微处理器提供通信接口和多功能智能模拟输出。这些模块提供了一个非常灵活，易于使用和成本效益的方法，数据采集。值和D4000与omegabus?d1000和D2000兼容，可用于任何组合。多达124个模块可串成一组导线。所有模块都配有螺丝端子插头连接器和圈养安装硬件。该连接器允许系统扩展，重构，或维修不干扰现场接线。它们的小尺寸允许他们可以安装在几乎任何位置或位置包括防爆外壳和DIN导轨。实用软件（d1000-sw）可以在一个IBM兼容的磁盘不收费的要求。D4000模块提供了一些额外的功能。压摆率可以编程，使其输出斜坡在一个浮动利率在上升或下降的方向。坡道可以启动和维护命令从计算机或外部开关关闭模块。D4000模块提供了一个回读功能可以让计算机输出的完整性验证。D4000模块还包括一个看门狗定时器电路，可以这样设定的，如果计算机无法与模块的预设时间后，该模块将自动重置一个可调的默认值。这*大限度地减少通信故障的风险。的A1000 RS-232到RS-485转换器和中继器可以在您的PC RS-485端口不可用的应用，它是必要的长距离通信。的A1000也提供电源模块。RS-232模块可以用于距离小于50英尺。
Common Specifications, D3000 and D4000 ANALOG OUTPUT
Single channel analog output
Voltage: 0-1 V, ± 1 V, 0-5 V, ± 5 V, 0-10 V, ± 10 V
Current: 0-20 mA
Input isolation to 500 V rms
12-bit measurement resolution
Accuracy (integral and differential non-linearity): 0.1% FSR (max)
Zero drift: ±30 μV/°C (voltage output) ±1.0μA/°C (current output)
1000 conversions per second
Settling time to 0.1% FS 300 μs typical (1 ms max)
Programmable output slew rate: 0.01 V/s (mA/s) to 10,000 V/s (mA/s) (D4000 only)
Autozero and autocalibration-no adjustment pots
Voltage compliance: ±12 V
Output current, short circuit current: 5 mA min, 10 mA max
ANALOG OUTPUT READBACK (D4000)
8-bit analog-to-digital converter
DIGITAL INPUTS
Voltage levels: ±30 V without damage
Switching levels: High, 3.5 V min, low, 1.0 V max
Internal pull-up resistors for direct switch input
COMMUNICATIONS
RS-232, RS-485
Up to 124 modules with A1000 converter/repeater, 32 without A1000
User selectable channel address (via software command)
Selectable baud rates: 300, 600, 1200, 2400, 4800, 9600, 19.2K, 38.4K
ASCII format command/response protocol
Parity: odd, even, none
All communications setups (address, baud rate,parity) stored in nonvolatile memory using EEPROM
Checksum can be added to any command or response
Communications distance up to 10,000 feet with RS-485 modules
Power Requirements: Unregulated +10 V to +30 Vdc, 0.75 W max (voltage output), 1.0 W max (current output)
Case: ABS with captive mounting hardware
Connectors: screw terminal barrier plug (supplied)
Temperature Range: Operating: -25°C to 70°C
Storage: -25°C to 85°C
Relative Humidity: 0 to 95% non-condensing
产品型号 产品描述
D3000 Series Output Module - Voltage Output
D3131 RS-232C input, +-5 V output
D3132 RS-485 input, +-5 V output
D3141 RS-232C input, +-10 V output
D3142 RS-485 input,+-10 V output
D3171 RS-232C input, 0 to 5 V output
D3172 RS-485 input, 0 to 5 V output
D3181 RS-232C input, 0 to 10 V output
D3182 RS-485 input, 0 to 10 V output
D3000 Series Output Module - Current Output
D3251 RS-232C input, 0 to 20 mA output
D3252 RS-485 input, 0 to 20 mA output
D4000 Series Output Module - Voltage Output
D4121 RS-232C input, +-1 V output
D4122 RS-485 input, +-1 V output
D4131 RS-232C input, +-5 V output
D4132 RS-485 input, +-5 V output
D4141 RS-232C input, +-10 V output
D4142 RS-485 input, +-10 V output
D4000 Series Output Module - Current Output
D4251 RS-232C input, 0 to 20 mA output
D4252 RS-485 input, 0 to 20 mA output
产品型号说明
(1) (2) (3)
D
选项描述
(1) Model
选择
3 代表 basic analog output module - 3000 series
4 代表 enhanced analog output module - 4000 series
(2) Output Range
选择
12 代表 ±1 V
13 代表 5 V
14 代表 ±10 V
16 代表 0 to 1V
17 代表 0 to 5V
18 代表 0 to 10V
25 代表 0 to 20mA
(3) Communication Interface
选择
1 代表 RS-232C
2 代表 RS-485
D3251数字变送器 美国omega
