966PB: 4 or 6-Channel Input Profibus-DP Modules

Description

These modules provide an isolated Profibus-DP network interface for up to six input channels. Multi-range inputs accept signals from a variety of sensors and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability. 3-way isolation further improves the system performance.

Input Ranges

RTD (user-selectable type):
2-wire and 3-wire RTDs are supported.
Platinum 100 ohm (alpha = 1.3850 or 1.3911)
Nickel 120 ohm
Copper 10 ohm
Resistance: 0 to 500 ohms
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
Input Type        Input Range              Accuracy (typical)
Pt 100 ohm          -200 to 850°C                          ±0.25°C
Ni 120 ohm            -80 to 320°C                          ±0.25°C
Cu 10 ohm            -200 to 260°C                          ±1.25°C
Resistance               0 to 500 ohms                   ±0.05 ohms

RTD Break Detection: Upscale or downscale selection applies to all channels.
Analog to Digital Converter (A/D): 16-bit A/D converter

Noise Rejection:
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 130dB @ 60Hz.
Input Filter Bandwidth: -3dB at 3Hz, typical
Excitation Current: 1mA DC typical, all RTD types

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.
Inputs share a common.