966 PB

Key Features:

These modules provide an isolated Profibus-DP network interface for up to six input channels.
Multi-range inputs accept signals from avariety of sensors and devices. High-resolution, low
noise, A/D converters deliver high accuracy and reliability. 3-way isolation further improves
the system performance.
• StandardProfibus-DP network communication with industry-standardASIC (Siemens SPC3)
• 6-input stand-alone module has much lower start-up cost than multi-piece block I/O systems
• Versatile RTD or ohmic inputs support a wide variety of industrial sensors and devices
• RTD break detection (upscale or downscale) identifies sensor wiring failures
• High-resolution 16-bit S-DA/D converters ensureprecise, high accuracy measurements
• Compact packaging with pluggable terminals saves space and simplifies wiring
• Wide operational temperaturerange permits installation in extreme environments

Product Details

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.
0to 500 ohms.
RTD Break Detection
Upscale or downscale selection applies to all channels.
Analog to Digital Converter (A/D)
16-bit S-Dconverter.
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.


Ambient Temperature
– Operating: -25 to 70°C (-13 to 158°F).
– Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity
– 5to 95%, non-condensing.
– 1500V AC for 60 seconds or 250V AC continuous.
– 3-way isolation between I/O, network, and power. Inputs share acommon.


Interface Standard
– Isolated, 3-wire RS-485 multi-drop, half-duplex, asynchronous.
Command/Response Protocol
Standard ProfiBus DP (Master/Slave) protocol per European Norm EN50170.
Baud Rate
Supports rates of 9600, 19.2K, 44.45K, 93.75K, 187.5K, 500K, 1.5M, and 12M bits per second,
Communication Distance
– Up to 1200 meters without a repeater using Type A wire (<30pF/m).
1200m @ 115Kbps or less
1000m @ 187.5Kbps
400m @ 500Kbps
200m @ 1.5Mbps
100m @ 12Mbps


– I/O channel, power, and network circuits are isolated from each other for common-mode voltages up to
250VAC, or 354V DC off DC power ground, on a continuous basis (will withstand 1500VAC dielectric
strength test for one minute without breakdown).
– Complies with test requirements of ANSI/ISA-82.01-1988 for voltage rating specified.


Compatibility (EMC)
– Immunity per European Norm EN50082-1.
– Emissions per European Norm EN50081-1.
Electrostatic Discharge (ESD) Immunity
– Per EN61000-4-2.
Radiated Field Immunity (RFI)
– Per EN61000-4-3 and ENV50204.
– Electrical Fast Transient Immunity (EFT)
– Per EN61000-4-4.
Conducted RF Immunity (CRFI)
– Per EN61000-4-6.
Surge Immunity
Per EN61000-4-5.
Radiated Frequency Emissions
– Per EN55022 Class B.