Product details

Origin:USA

Brand:bently

Product ID:PWA8499

product description 

Seismic Direct Input Card

Configuration:
• A/D Resolution: 16 bits
• Bias Current Supply: 3.3mA
• Transducer Type: 2-Wire Current Mode Sensors
• Transducer Power Supply Voltage: +24 ± 5% Vdc
• Conformal Coated

Description

The 149744 Trendmaster* Dynamic Scanning Module (DSM) is a compactrack-based 

data acquisition system that is fully integrated with System 1*software. The DSM rack 

has a total of 5 card slots. The first slot is dedicated forcommunications and will accept 

either the copper or fiber Ethernet card. Theother 4 slots are general-purpose card 

slots that can accept any combination ofthe available DSM input cards.

The DSM supports both Direct Input cards and a TIM Input card. Direct Inputcards connect 

directly to sensors and are available for a variety of sensors aswell as 4-20 mA transmitters. 

Direct Input cards support up to 8 channels andprovide very rapid scanning. The TIM input 

card connects to Bently Nevada* TIM,flexiTIM, and proTIM* modules. Each TIM input card 

provides 2 TIM lines, andeach TIM line supports up to 255 TIMs and transducers. All input 

card types offerhigh-resolution sampling with onboard real-time processing. Onboardprocessing 

is the key to the powerful and efficient features available with theDSM platform. Because each 

input card can process data locally, the DSM canreturn post-processed variables to the host 

computer and reduce the requirednetwork bandwidth. If the host computer requires raw data, 

the DSM can alsoreturn waveforms and spectrums.

Modbus Communications Capability

The introduction of a Modbus digital interface now permits DSMs tocommunicate directly with 

process control and automation systems without theneed for additional hardware. This capability 

provides a low-cost entry-levelalternative to System 1 that uses the basic trending and alarming 

functionalitythat is integral to existing process control systems. All DSMs now includeModbus over 

TCP/IP capability and require only the DSM Modbus Exportersoftware to configure all the DSM 

inputs and define the Modbus interface. TheDSM requires the Modbus Serial to Ethernet Bridge 

for RS232/485 Modbuscommunication. See the accessory section of this datasheet for the 

ModbusExporter software and Serial to Ethernet Bridge part numbers.