Duplexed processors
S2SC70D-SA11010 / S2SC70D-SA12010 contain two identical S2CP471 modules. The duplicated processor arrangement belongs to the safety control unit itself, rather than to an external node.
ProSafe-RSSIL3 safety control
Duplexed N-IO/FIO controller
Yokogawa S2SC70D-SA11010 / S2SC70D-SA12010 Duplexed Safety Control Units
Section 01
01
Product Information
Yokogawa S2SC70D-SA11010 / S2SC70D-SA12010 are duplexed safety control units for ProSafe-RS, combining safety control processing, dual Vnet/IP communication and interfaces for N-IO and supported FIO nodes in a rack-mounted unit. Their control structure supports SIL3 safety functions while keeping processor and power redundancy inside the same chassis.
S2SC70D-SA11010 / S2SC70D-SA12010 each use two identical S2CP471 processor modules and two power supply modules. Application programs are retained in flash memory and operating data is held in nonvolatile memory, so the processor pair and memory structure serve different parts of the control cycle rather than acting as interchangeable storage.
The functional layout of S2SC70D-SA11010 / S2SC70D-SA12010 is the same, but the incoming AC branch differs. S2SC70D-SA11010 is the 100–120 V AC construction and S2SC70D-SA12010 is the 220–240 V AC construction; the cabinet feed and its protective devices must therefore follow the complete order code.
Section 02
02
Technical Data
| Specification | S2SC70D-SA11010 | S2SC70D-SA12010 |
|---|---|---|
| Brand | Yokogawa | |
| Product type | Duplexed safety control unit | |
| Control system | ProSafe-RS | |
| Safety integrity | SIL3 | |
| Processor configuration | Two S2CP471 modules | |
| Network | Dual Vnet/IP | |
| Power input | 100–120 V AC | 220–240 V AC |
| Power consumption | 200 VA | 230 VA |
| Power modules | Two | |
| Maximum N-IO nodes | 32 | |
| Maximum safety nodes | 13 | |
| Maximum FIO modules | 8 | |
| Standard ambient range | −20 to 40 °C | |
| Approximate weight | 8.5 kg | |
| Coating | G3 | |
Section 03
03
Safety Processing and Memory Structure
S2SC70D-SA11010 / S2SC70D-SA12010 organize safety execution around a matched processor pair and two different forms of retained information. This keeps the application definition distinct from changing operational data.
Application storage
S2SC70D-SA11010 / S2SC70D-SA12010 retain application programs in flash memory. The program image defines the safety logic executed by the processor pair.
Operating-data retention
S2SC70D-SA11010 / S2SC70D-SA12010 use nonvolatile memory for operating data. This storage path is separate from the flash location used for the application program.
Section 04
04
Network and I/O Node Architecture
Through dual Vnet/IP and its node interfaces, S2SC70D-SA11010 / S2SC70D-SA12010 connect the safety controller to the wider system and to field I/O at different hierarchy levels.
Vnet/IP connection
S2SC70D-SA11010 / S2SC70D-SA12010 use dual Vnet/IP for control-network communication. Both paths belong to the specified duplexed network construction.
N-IO scale
S2SC70D-SA11010 / S2SC70D-SA12010 can address up to 32 N-IO nodes. These nodes extend field-signal connectivity beyond the controller rack.
FIO boundary
S2SC70D-SA11010 / S2SC70D-SA12010 support up to eight FIO modules and up to thirteen safety nodes, making those limits separate from the larger N-IO node count.
Section 05
05
Product Questions
Why must the voltage suffix be retained for S2SC70D-SA11010 / S2SC70D-SA12010?
S2SC70D-SA11010 / S2SC70D-SA12010 use different AC inputs: the first is 100–120 V AC and the second is 220–240 V AC. The full code keeps that cabinet-power distinction visible.
Are S2SC70D-SA11010 / S2SC70D-SA12010 single-processor controllers?
No. S2SC70D-SA11010 / S2SC70D-SA12010 are duplexed safety control units and each uses two identical S2CP471 processor modules.
How are program and operating data retained in S2SC70D-SA11010 / S2SC70D-SA12010?
S2SC70D-SA11010 / S2SC70D-SA12010 store application programs in flash memory and retain operating data in nonvolatile memory; these are distinct storage roles.
Can the N-IO and safety-node limits for S2SC70D-SA11010 / S2SC70D-SA12010 be added together?
No. S2SC70D-SA11010 / S2SC70D-SA12010 specify separate architectural limits: up to 32 N-IO nodes, up to 13 safety nodes and up to 8 supported FIO modules.
What rack connections should be identified for S2SC70D-SA11010 / S2SC70D-SA12010?
For S2SC70D-SA11010 / S2SC70D-SA12010, identify both Vnet/IP paths, the selected N-IO/FIO node layout, the AC feed and the protective grounding points.
What should an S2SC70D-SA11010 / S2SC70D-SA12010 enquiry include?
An S2SC70D-SA11010 / S2SC70D-SA12010 enquiry should retain the exact voltage code, processor configuration, network arrangement, coating selection and required quantity.
Section 06
06
Shipping Services
Moore Automation
https://www.mvme.cn
Moore Automation prepares automation parts for dispatch with model labels and protective packing suited to the item. Carrier details and the available tracking reference are linked to the shipment record after collection.
Model label checked
Protective packing selected
Carrier details recorded
Tracking reference shared when available
Section 07
07
Product Recommendations
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