140PTQHART

Configured for high-density analog signal processing and bi-directional field device parameterization in Modicon Quantum backplane architectures, the Schneider Electric 140PTQHART (140PTQHART HART Communication Interface Module) provides direct physical/electrical execution. The module processes 8 channel-isolated 4-20 mA current loops while concurrently extracting overlaid FSK digital telemetry directly onto the backplane bus without requiring secondary signal conversion or external multiplexer hardware.

Hardware Specifications

Parameter	Specification
Model	140PTQHART
Brand	Schneider Electric
Origin	Country of origin unspecified by manufacturer
Weight	554 g
Operating Temp	0 to +60 deg C
Storage Temp	-40 to +85 deg C
Relative Humidity	5% to 95% RH (non-condensing)
Power Supply	5 VDC via Quantum backplane
Power Consumption	Approx. 3 W
Product Series	Modicon Quantum
Channels	8 HART-enabled analog input channels
Signal Type	4-20 mA analog with HART digital overlay
Supported Protocols	HART 5, HART 6, HART 7
Data Access Capabilities	Primary, Secondary, Tertiary, Quaternary variables (PV, SV, TV, QV), status, and diagnostics
Configuration Interface	RS-485 / PTQ-HART Configuration Utility
Mounting Type	Quantum Rack / Backplane slot

Deterministic Backplane Communication Velocity & I/O Density

The 140PTQHART module interfaces directly with the high-speed Modicon Quantum backplane bus, utilizing deterministic cycle execution to transport primary analog values alongside secondary digital diagnostics. By managing 8 discrete 4-20 mA channels per single slot, the module maintains robust channel-to-channel isolation parameters to prevent ground loops across field instrumentation networks. Firmware flash compatibility ensures unified protocol parsing for HART 5, HART 6, and HART 7 field devices, allowing seamless access to PV, SV, TV, and QV parameters without interrupting analog loop execution times.

Frequently Asked Questions

Q: Can the 140PTQHART module be installed or removed under power (hot-swapped)?

A: Hot-swapping must follow standard Modicon Quantum rack guidelines. While the Quantum backplane supports module insertion and removal under power, field wiring connections must be isolated or verified as non-hazardous prior to module removal to avoid signal disruption on active 4-20 mA loops.

Q: What is the backplane power drain associated with this module?

A: The module draws power directly from the 5 VDC Quantum backplane bus with a nominal power consumption of approximately 3 W. Ensure the system power supply module has adequate current budget available for all rack-mounted cards.

Q: How is serial configuration managed for the HART gateway parameters?

A: The onboard RS-485 port connects directly to a PC running the PTQ-HART Configuration Utility. This dedicated interface enables parameter assignment, HART scan list construction, and baud rate setting without consuming PLC network bandwidth.

Field Installation Guidelines

1. Rack Mounting & Mechanical Seat: Align the 140PTQHART module with the target slot on the Modicon Quantum backplane. Firmly press the module top and bottom until the mechanical locking mechanism engages completely.
2. Field Wiring & Shielding Protocols: Connect 4-20 mA signal pairs to the designated terminal block terminals. Ensure signal cable shielding is grounded at a single point (typically the cabinet earth bar) to minimize high-frequency noise interference on HART FSK signals.
3. Serial Configuration Link: Connect an RS-485 serial interface cable from the host configuration PC running the PTQ-HART Utility to the front-panel configuration port for initial parameter setup.
4. Earthing and Loop Checks: Maintain standard cabinet grounding practices, ensuring all metal rack rails adhere to industrial IEC grounding standards. Verify field device loop voltages prior to energizing the backplane power supply.

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