961PB, 962PB: 6-Channel Differential Profibus-DP Input Modules Description
These modules provide an isolated Profibus-DP network interface for six analog input channels. Differential inputs eliminate ground loops and thus the need for isolators in any applications. Multi-range inputs accept signals from a variety of sensor and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability.
Input Ranges
DC Current (user-selectable ranges)
0 to 1mA, 0 to 11mA, 0 to 20mA, 4 to 20mA
0 to 20 amps AC (with optional AC sensor)
DC Voltage (user-selectable ranges)
±78mV to ±10V DC (eight range options)
Network Communication
Profibus-DP, RS-485 network up to 12Mbaud
Power Requirement
12 to 36V DC supply required
Approvals
Profibus PNO certified.
CE marked. UL, cUL listed Class I; Division 2; Groups A, B, C, D.
Performance
Input
Configuration: Input ranges are selectable for a 3-channel group.
Accuracy: Better than ±0.05% of span for nominal input ranges.
Analog to Digital Converter (A/D): 16-bit A/D converter.
Resolution: 0.005% or 1 part in 20000.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 140dB @ 60Hz.
Input Filter Bandwidth: -3dB at 3Hz, typical.
DC Current Input Impedance: 24.9 ohms.
DC Voltage Input Impedance: Greater than 110.5K ohms.
Environmental
Ambient Temperature
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous 3-way isolation between I/O, network, and power.
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