Products Description
| Company Information | |||
| sales@xmjzjsgs.com | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 |
Technical Specifications
| Parameter | Description |
|---|---|
| Model | PM856 |
| Part Number | 3BSE018128R1 |
| Controller Platform | AC 800M |
| Processor Type | MPC860 series, up to 133 MHz |
| Memory | RAM + Flash for firmware and application |
| Communication Ports | 2 × RJ45 Ethernet (CN1, CN2) 2 × Serial Ports (COM3, COM4) |
| Ethernet Communication | Dual redundant ports (CN1 and CN2) |
| Serial Interfaces | COM3 (RS-232C), COM4 (isolated configuration port) |
| Electrical ModuleBus | Supports up to 12 I/O modules |
| Optical ModuleBus | Supports 7 clusters × 12 modules = 96 modules total |
| CEX-Bus Expansion | For communication interface expansion, supports redundancy |
| Storage Card | CompactFlash slot |
| Power Input | 24V DC (L+, L-) |
| Power Supervision Signals | SA, SB |
| Internal Battery | Supported for RAM and RTC backup |
| External Battery Support | Supports SB821/SB822 |
| Redundancy Support | CPU redundancy via TK851 RCU Link cable |
| Dimensions | 119 mm × 186 mm × 135 mm |
| Weight | 1.1 kg |
| Mounting | DIN rail installation |
| Protection Class | IP20 (external enclosure required for higher IP rating) |
FAQ
Frequently Asked Questions (FAQ)
Q1: Does PM856 support CPU redundancy?
A1: Yes. PM856 supports hot-standby redundancy with another CPU using RCU Link cable (TK851), with switch-over in less than 10 ms.
Q2: What communication ports are available on PM856?
A2: It provides 2 Ethernet ports (CN1, CN2) and 2 serial ports: COM3 (RS-232C) and COM4 for configuration.
Q3: What I/O connection options are supported by PM856?
A3: It supports S800 I/O via electrical ModuleBus and optical ModuleBus, and communication expansion via CEX-Bus.
Q4: How is PM856 powered?
A4: Powered by 24V DC. ABB SD83x series power supplies are recommended, with SA and SB signals for redundancy supervision.
Q5: Can PM856 be replaced during system operation?
A5: Yes, in redundant configurations, the faulty CPU can be replaced without system downtime.
Q6: Does PM856 support external storage?
A6: Yes. It supports CompactFlash memory card for application and data storage.
Q7: Is an internal battery included in PM856?
A7: Yes. It includes an internal battery for maintaining RAM and real-time clock during power loss.
Q8: Are redundant communication interfaces supported?
A8: Yes. Redundant communication modules can be added via CEX-Bus for high availability.
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
