Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | PTQ-PDPMV1 |
| Manufacturer | ProSoft Technology |
| Host Platform | Schneider Electric Quantum PLC |
| Protocol | PROFIBUS DP-V0 / DP-V1 Master (Class1 / Class2) |
| Maximum Slaves | 125 PROFIBUS DP slaves |
| Data Capacity | 1536 bytes input, 1536 bytes output |
| PROFIBUS Baud Rate | 9.6 kbps up to 12 Mbps |
| Backplane Supply | 5 VDC from Quantum backplane; max 1100 mA current draw |
| PROFIBUS Port | DB9 female, optically isolated RS485 |
| Configuration Ports | DB9M RS232 serial port, RJ45 Ethernet port |
| Operating Temperature | 0 °C to +60 °C, cabinet mounted |
| Certifications | CE, UL, RoHS |
| Hot Standby Support | Yes; switchover ≤300 ms for redundant Quantum CPU pairs |
Product Introduction
The PTQ-PDPMV1 is a ProTalk communication module built to add PROFIBUS DP-V1 master capability to Schneider Quantum PLC racks. It exchanges cyclic and acyclic data between the Quantum processor and PROFIBUS field devices.
It handles the full PROFIBUS protocol stack independently from the CPU. This reduces controller load and supports acyclic parameter reads, which are useful for drive tuning and device diagnostics. The module stores its configuration locally in non-volatile memory.
Installation & Configuration Guide
Preparation (10 min)
- Power down the target Quantum rack slot. Verify backplane 5 VDC supply is stable.
- Gather ESD wrist strap, ProSoft Configuration Builder (PCB), and GSD files for all PROFIBUS slaves.
- Inspect module front LEDs and backplane connector for bent pins or physical damage.
Removal (5–10 min)
- Unlatch the module retaining clip. Pull the card straight out from the rack.
- Disconnect DB9 PROFIBUS cable only if replacing the field wiring.
- Place removed hardware immediately into anti-static packaging.
Installation (10 min)
- Connect ESD strap to grounded cabinet frame.
- Align the module with rack guides and push fully home until the latch engages.
- Terminate PROFIBUS bus at the two physical endpoints with 120 Ω resistors.
Power-On & Test (10 min)
- Restore rack power. Confirm module status LED illuminates green.
- Open ProSoft Configuration Builder and download the PROFIBUS network configuration.
- Verify slave detection, cyclic data exchange, and fault reporting for each device.
Troubleshooting Quick Reference
| Symptom | Likely Root | Recommended Check |
|---|---|---|
| Module status LED stays red | Backplane recognition failure or invalid configuration | Re-seat module; re-download configuration; check PCB project CRC |
| No PROFIBUS slaves found | Missing or misplaced 120Ω bus termination | Measure bus resistance; confirm resistors at trunk endpoints only |
| Intermittent slave timeouts | Baud rate mismatch or high electrical noise | Set baud rate to lowest common slave rating; check shield grounding |
| Acyclic DPV1 reads fail | Old PCB software version | Upgrade ProSoft Configuration Builder to release supporting DPV1 |
| Hot standby switchover fails | Incompatible Quantum CPU firmware | Match CPU firmware to ProSoft hot standby compatibility matrix |
Dimensions, Mounting & Wiring Notes
- H×W×D: 250 mm × 103.85 mm × 40.34 mm
- Mounting: Single-slot installation inside standard Quantum rack, horizontal backplane
- Terminal notes: PROFIBUS DB9 pin 3 = data +, pin 8 = data -. Bus shield connects to cabinet ground at one end only. Do not ground shield at both ends. Maintain separation between PROFIBUS wiring and high-current motor cables.
FAQ
- Q: Can the PTQ-PDPMV1 run in a remote Quantum rack? A: No. This module must install in the same local rack as the Quantum CPU. Remote rack placement is not supported.
- Q: What software do I use to configure the PROFIBUS network? A: ProSoft Configuration Builder, also called PCB. Older PCB versions lack full DPV1 and hot standby features.
- Q: I have a hot standby Quantum CPU pair. Do I need two PTQ-PDPMV1 modules? A: Yes. One module per CPU. The pair coordinates automatically and switches PROFIBUS master control within 300 ms.
- Q: I replaced a PTQ-PDPMV1. Can I reuse the old configuration file directly? A: Usually yes. Confirm the module hardware revision matches. Download the configuration and verify CRC after swap.
- Q: What is the difference between DP-V0 and DP-V1 on this module? A: DP-V0 handles cyclic process data. DP-V1 adds acyclic reads and writes for device parameters and diagnostic access.
- Q: Does the module come with GSD files? A: ProSoft Configuration Builder includes common GSD files. You will need to source custom GSD files for third-party slave devices.
- Q: Can I use this module with Unity Pro? A: Yes. Unity Pro 2.2 or newer supports the Quantum backplane data exchange for PTQ-PDPMV1.
