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C79458-L2343-A2

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Siemens C79458-L2343-A2 is a SIMATIC NET CP 1413 SINEC H1 communication processor with a 16-bit ISA interface and one ITP Ethernet port.
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Technical specifications for C79458-L2343-A2

  • Manufacturer:
    Siemens
  • Part Number:
    C79458-L2343-A2
  • Product Family:
    Siemens Simatic Net
  • Product Type:
    SIMATIC NET CP 1413 SINEC H1 ISA Communication Processor
  • Stock:
    1
  • Processor Designation:
    SIMATIC NET CP 1413
  • Network Family:
    SINEC H1 industrial Ethernet
  • Host Bus:
    16-bit ISA
  • Host Platform:
    IBM AT-compatible PC or programming device
  • Network Interface:
    1 x ITP Ethernet port
  • Selectable I/O Ranges:
    0100H–0107H, 0390H–0397H, or 03E0H–03E7H
  • Configuration Register:
    4 I/O addresses
  • Reserved I/O Space:
    8 consecutive addresses
  • Selectable Interrupts:
    IRQ 5, 10, 12, or 15
  • Dual-Port RAM:
    64 KB or 256 KB configuration
  • Resource Jumper:
    X3
  • Configuration Software:
    SIMATIC NET Set PG/PC Interface
  • Documented Operating System:
    Windows NT 4.0 or higher for PG-1413 package
  • Weight:
    0.212 lbs (0.096 kg)
  • Estimated shipping dimensions:
    13.7x20.1x4cm
  • Tariff Code:
    8517620050
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals ISA Resources Dual-Port RAM Network Path Configuration

Features:

  • A 16-bit ISA interface connects the CP 1413 hardware to an AT-compatible host.
  • One ITP Ethernet port links the host application to the SINEC H1 network.
  • Jumper-selected I/O addresses, IRQ, and dual-port RAM must be reserved before driver startup.
Siemens C79458-L2343-A2 provides the CP 1413 hardware path between a host PC and SINEC H1 communication.

Resource settings on C79458-L2343-A2 keep its ISA I/O space and interrupt separate from other host adapters.

The SIMATIC NET configuration for C79458-L2343-A2 binds the hardware resources to the required application access point.

Verify the complete Siemens C79458-L2343-A2 SIMATIC NET CP 1413 SINEC H1 Communication Processor article number and interface configuration before matching the installed unit.
Siemens C79458-L2343-A2 SIMATIC NET CP 1413 SINEC H1 Communication Processor Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Host Address and Interrupt Assignment

  • I/O range: One of three eight-address ISA ranges is selected before installation.
  • Interrupt: IRQ 5, 10, 12, or 15 must remain free for the processor.
  • Conflict check: SCSI, sound, network, and other cards are checked for overlapping resources.
  • Restart: Changed resource values take effect only after the documented host restart.

Shared Host Memory Window

  • RAM role: Dual-port RAM exchanges commands and data between the host driver and communication processor.
  • Memory size: The configuration selects a 64 KB or 256 KB window.
  • Address boundary: The chosen memory area must not be used by another host component.
  • BIOS limits: Older hosts can restrict which ISA memory ranges are accessible above 16 MB system memory.

SINEC H1 Communication Chain

  • ITP port: The network connector carries the CP 1413 industrial Ethernet path.
  • Host application: SIMATIC NET software routes application requests through the configured processor.
  • Access point: The PG/PC interface assignment links the application name to the CP 1413 parameter set.
  • Address identity: The configured Ethernet address must agree with the project and network database.

Driver and Hardware Setup Order

  • Jumper setting: X3 is set to the selected I/O range before the card is installed.
  • Driver resources: The configuration tool records I/O range, IRQ, and dual-port RAM values.
  • Hardware install: Power is removed before inserting the ISA card in the host slot.
  • Diagnostic review: Windows event messages and PG/PC interface status identify startup resource conflicts.
Description
Siemens C79458-L2343-A2 is a SIMATIC NET CP 1413 communication processor that installs in a 16-bit ISA slot of an AT-compatible PC or programming device. The card links the host computer to a SINEC H1 industrial Ethernet network through its ITP interface.

Hardware resources for C79458-L2343-A2 include an I/O range selected by jumpers, one configurable interrupt, and a dual-port RAM area shared with the host. These resources must not overlap the SCSI controller, network adapters, or other expansion cards in the PC.

The configuration register of C79458-L2343-A2 occupies four I/O addresses, while the card reserves an eight-address range beginning at 0100H, 0390H, or 03E0H. The selected range is set on jumper block X3 before the driver starts the processor.

Local configuration for C79458-L2343-A2 assigns its I/O range, IRQ, dual-port RAM size, and SIMATIC NET access path. After any resource change, the host requires the documented shutdown and restart sequence before the new settings take effect.
Alternative Names
C79458L2343A2 C79458 L2343 A2 C794 58 L2343 A2 Siemens C79458-L2343-A2 C79458-L2343-A2 CP1413 C79458-L2343-A2 SINEC H1 Card C794S8-L2343-A2 C79458-L2343-AZ
Technical notes
I/O range, IRQ, and dual-port RAM assignments for Siemens C79458-L2343-A2 must be reserved before the CP 1413 driver starts.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does C79458-L2343-A2 fail to start after installation?
Check the C79458-L2343-A2 X3 I/O range, IRQ, dual-port RAM address, ISA slot seating, driver selection, and conflicts with other host hardware.
What can cause memory errors when C79458-L2343-A2 shares a PC with a SCSI controller?
Ensure the C79458-L2343-A2 dual-port RAM window does not overlap the SCSI controller or another adapter memory range.
Why must the host restart after changing C79458-L2343-A2 resources?
The C79458-L2343-A2 driver loads its I/O, interrupt, and memory assignments during startup, so changed values require the documented restart sequence.
Which I/O range should be used for C79458-L2343-A2?
Select a documented C79458-L2343-A2 range—0100H, 0390H, or 03E0H—that is not occupied by any other ISA device.
Why can C79458-L2343-A2 appear in the driver but not pass network traffic?
Verify the C79458-L2343-A2 access-point assignment, Ethernet address, ITP connection, network database, protocol configuration, and remote SINEC H1 station.
What must be recorded before replacing C79458-L2343-A2?
Record the C79458-L2343-A2 jumper position, I/O range, IRQ, dual-port RAM window, Ethernet address, access point, and installed SIMATIC NET package.