B&R 3IF797.9 Interface Module

モデル: 3IF797.9 (aPCI interface module, System2005 series, FlexIQ platformonly)

Important distinction: 3IF797.91 is a separate dualX2XLink variant with different pin assignments. Do not mix them up.

インターフェース構成 (All Galvanically Isolated)

X2Xリンクマスター (1チャネル): Master interface for System2005 series I/O module expansion
CAN Bus (1チャネル): Up to 500 kbit/s, transmitreceive object buffer supported, CANopencompliant
RS232 (1チャネル): Serial port for debugging and thirdparty serial device connection

必須付属品: Two pieces of 0TB704.9 4pin screw terminal blocks. Terminals are not supplied with the module and must be ordered separately.

主要な技術仕様

Bus types: X2XLink, できる, RS232, all galvanically isolated

CAN baud rate: マックス. 500 kbit/s

電源: 5 ワシントンDCで (aPCI backplane powered)

動作温度: 25℃～+55℃

保管温度: 40℃～+85℃

湿度: マックス. 95 % noncondensing

認証: CE, UL/cULus, UKCA, EAC, KC

ソフトウェア: Configuration and programming via Automation Studio

Hardware Limitations

Official note: 3IF797.9 is exclusively for FlexIQ Automation PCs. Ordinary System2005 CPU modules cannot accept this card, due to FPGA resource constraints; it will not function on standard CPUs.

Form factor: aPCI slot (internal industrial PC board)

Product family: System 2005 platform, legacy hardware, endoflife. Only newoldstock and used secondhand units are available on market.

代表的な用途

Communication expansion for legacy B&R FlexIQ industrial PCs

Allinone communication: X2X Link remote I/O expansion + CANopen devices + RS232 peripherals

Sparepart service for legacy machinery: 包装機, 繊維機械, injectionmolding machines, 印刷装置

SpareParts & Migration Alternatives

Original spare parts: Only NOS / secondhand units available. For used modules, verify X2X communication, CAN transmitreceive, RS232 function and isolation withstand voltage.
Alternative solution concepts

X2X Link: This bus is discontinued on new platforms. Adopt X20 series for new projects; legacy installations must retain the original card.

できる: X20IF1063 (X20CANopen module)

RS232: X20IF1091 serial module

⚠️ Software note: Migrating legacy System2005 programs to X20 requires complete reconfiguration; direct hardware replacement is not feasible.

SecondHand Inspection Checklist

目視チェック: Inspect aPCI gold fingers for oxidation / burn marks; check PCB for corrosion and bulging capacitors.
Poweron test: Install in FlexIQ IPC, confirm hardware detection within Automation Studio hardware tree for 3IF797.9.
Separate communication tests: Read/write test with X2X I/O modules; CAN bus test with CANopen devices; RS232 sendreceive test.
絶縁試験: Measure insulation resistance between field interfaces and backplane if test equipment is available.

3IF797.9 VS 3IF797.91 Comparison Table

比較項目	3IF797.9	3IF797.9‑1
Platform Constraint	Flex‑IQ IPC only. Not compatible with standard System2005 CPUs	General‑purpose aPCI module, supports full System2005 aPCI IPC range, not limited to Flex‑IQ
インターフェース構成	1×X2X‑Link Master, 1×CAN, 1×RS232, all galvanically isolated	1×X2X‑Link Master, 1×CAN, 1×RS232, all galvanically isolated
Physical Termination	2 × 0TB704.9 screw terminals, no onboard DB9 connector	RS232 via metal‑cased DB9 male connector; できる / X2X use 2 × 0TB704.9 terminals
Required Accessories	2 × 0TB704.9 must be ordered separately	2 × 0TB704.9 for CAN/X2X; RS232 uses DB9, no terminal block required
電気的パラメータ	CAN max 500 kbit/s; RS232 max 115.2 kbit/s; 5 V backplane supply; ‑25~+55℃ operating temp	CAN max 500 kbit/s; RS232 max 115.2 kbit/s; 5 V backplane supply; ‑25~+55℃ operating temp
ソフトウェア	Automation Studio for X2X master, CANopen and RS232 configuration	Automation Studio for X2X master, CANopen and RS232 configuration; RS232 configurable as on‑board debug port
製品の状態	End‑of‑life, NOS / second‑hand only	End‑of‑life, NOS / second‑hand only
Major Risk	Non‑Flex‑IQ IPC will detect hardware but communication fails	Wide compatibility with legacy System2005 aPCI IPC hardware
互換性	Not directly interchangeable. Platform restriction plus different physical connectors; always verify original part number before replacement	Not directly interchangeable. Different RS232 physical interface and wiring assignments

Practical Replacement Guidelines

Original host is FlexIQ IPC: Prefer 3IF797.9. Although 3IF797.91 can be detected by hardware, RS232 changes to DB9 and existing field wiring must be reworked.
Original host is standard aPCI IPC (nonFlexIQ): Only 3IF797.91 works; 3IF797.9 will not operate.
Usedpart procurement: Always check complete part number including suffix; ordering based only on “3IF797.9” without the suffix may result in nonfunctional hardware.
Wiring note: All three buses on 3IF797.9 run via 0TB704.9 terminals. On 3IF797.91 RS232 uses DB9, CAN and X2X use 0TB704.9 terminals.

Additional Notes for SecondHand Testing

3IF797.9: All communication channels must be tested via terminal blocks.

3IF797.91: RS232 can be tested directly via DB9 connector; できる / X2X via 0TB704.9 terminals.

B&R 3IF797.9 Practical Application Cases

Hardware prerequisite: Installed in a FlexIQ IPC aPCI slot. Allinone interfaces: X2XLink Master + CANopen + RS232, all galvanically isolated.

Product positioning: Legacy OEM board widely deployed 20042012 with FlexIQ IPCs. No newproject deployment; exclusively for installedbase sparepart maintenance.

Case 1: Blowmolding Machine (Hollow Forming Equipment)

System Architecture: FlexIQ (PP481) IPC + 3IF797.9

X2XLink: 地元 / remote System2005 I/O modules for barrel temperature acquisition, wallthickness sensors and valve outputs

CANopen: Servodrive control for blowpin movement and mold opening/closing

RS232: Connect weighing instruments and wallthickness gauges for processdata acquisition

プロセス: Closedloop parison wallthickness control, cycle time ~2 ms for hollow blowmolding production

Common field failure: Aged hardware causes CAN packet loss leading to servo jitter; X2X link dropout triggers full machine stop.

Case 2: 繊維機械 (Warpknitting / Circular Knitting / Dyeing Equipment)

System Architecture: FlexIQ IPC + 3IF797.9 + EX470 / X67 remote I/O

X2XLink: Distributed System2005 I/O for proximity switches and solenoid valves on machine frames

CANopen: Multiaxis servo synchronization for warpfeed and fabric takeup

RS232: Tension controllers and dyemachine temperature controllers

Industryspecific failure: Heavy workshop dust causes goldfinger oxidation, a common failure mode for used boards.

Case 3: 包装機械 (Vertical FormFillSeal, Postprint Carton Packaging)

System Architecture: FlexIQ IPC as main controller with 3IF797.9 communication expansion

X2XLink: EX470 remote I/O distributed at feeding, sealing and cutting stations

CANopen: AC110 servo drives for film feeding, traction and cutting via electronic cam profiles

RS232: Barcode scanners and label printers for batchcode marking on finished bags

区別: Many packaging machines use 3IF771.9 (CANonly). 3IF797.9 is selected where X2X + できる + RS232 are all required.

Case 4: Legacy AllElectric InjectionMolding Machine

System Architecture: FlexIQ IPC + 3IF797.9

X2XLink: System2005 I/O for safetydoor interlocks, temperature control and hydraulic valves

CANopen: Servodrives for injection, plasticizing and mold openclose motion

RS232: Legacy external moldtemperature controllers via ModbusRTU (RS232level) for temperature setpoint and readback

注記: Native RS232 without RS485 hardware. An external levelconverter is required for ModbusRTU485.

Case 5: Tire Machinery (Steelcord cutting & rubber extrusion lines)

System Architecture: FlexIQ IPC + 3IF797.9

X2XLink: Longdistance X67 IP67rated field I/O mounted on machine frames

CANopen: Multiaxis servo synchronization for cutting, material feeding and webedge correction

RS232: Thicknessmeasurement gauges for realtime rubbersheet thickness data acquisition.

Typical System Topology for 3IF797.9

FlexIQ IPC (aPCI slot) → 3IF797.9

X2XLink Master → EX470, XX436, X67 I/O modules
できる (CANopen Master) → B&R AC110 servos and thirdparty CANopen devices
RS232 → Meters, プリンター, barcode scanners and thirdparty serial peripherals

Common OnSite Faults from InstalledBase Maintenance

Only functional inside FlexIQ IPC; inserting into standard System2005 aPCI hardware results in communication failure.
Aging / loose 0TB704.9 terminal blocks cause intermittent X2X / CAN communication.
Damaged galvanicisolation circuits: external interference triggers IPC crash.
ESDdamaged RS232 interface: serial channel fails while X2X and CAN remain operational.

ProjectSelection Guidance: 3IF797.9 vs 3IF797.91

Original hardware = FlexIQ IPC: Use 3IF797.9, all field signals routed over 0TB704.9 terminals.

Original hardware = standard aPCI IPC (nonFlexIQ): Use 3IF797.91. RS232 uses DB9 connector; 3IF797.9 will not work.

B&R 3IF797.9 Full Technical Specifications

モデル: 3IF797.9; aPCI communication module, FlexIQ IPC exclusive. FPGA constraints prevent operation on standard System2005 CPU / aPCI hosts.

商品の状態: Endoflife. Mandatory accessories: 2 × 0TB704.9 4pin screw terminals (not supplied with module)

インターフェース仕様 (All Galvanically Isolated)

インタフェース	説明
X2X‑Link Master	1‑channel master, 電気的に絶縁された; expands System2005 I/O (EX470, XX436, X67). Proprietary X2X bus; incompatible with X20 series
CAN Bus	1‑channel, 電気的に絶縁された; max 500 kbit/s. Transmit‑receive object buffering; supports CANopen master / slave mode
RS232	1‑channel, 電気的に絶縁された; max baud rate 115.2 kbit/s. Debug and Modbus‑RTU (RS232‑level). No native RS485 support

Physical termination: All three interfaces connect via two 0TB704.9 screw terminal blocks. No DB9 connector on PCB.

電気的特性

Backplane power: 5 ワシントンDCで (aPCI backplanefed; no external 24 V supply)

Typical power consumption: ~2.5 W

Galvanic isolation: Isolation between X2XLink / できる / RS232 and IPC backplane

CAN bus: Requires external termination resistor; no onboard 120 Ω termination

環境条件

動作温度: 25 ℃～ +55 ℃

保管温度: 40 ℃～ +85 ℃

相対湿度: 595 %, noncondensing

侵入保護: Bare PCB for internal IPC installation; no enclosure rating.

ハードウェア & 機械的設置

Slot form: aPCI (internal IPC addon card)

Firmware constraint: Operates only inside FlexIQ Automation PC. Other aPCI hosts detect hardware but communication fails.

Status LEDs: Separate transmitreceive LED indicators for X2X, CAN and RS232 channels

ソフトウェア: Automation Studio for hardware configuration, CANopen setup and serialdriver assignment

認証: CE, UL/cULus, UKCA, EAC, KC

Critical Engineering Limitations
❗Not usable with standard System2005 CPU or nonFlexIQ aPCI IPC. Hardware may be detected but communication will fail; this is a FPGA firmware limitation, not a wiring fault.
RS232 only supports RS232 signal levels. External level converter required for ModbusRTU485.
X2XLink works exclusively with legacy System2005 I/O; cannot connect directly to X20 I/O.
CAN bus has no builtin termination. Fit external 120 Ω resistors at both physical bus ends.
0TB704.9 terminal blocks must be ordered separately; not factoryfitted to the module.
Condensed Parameter Comparison: 3IF797.9 vs 3IF797.91

アイテム	3IF797.9	3IF797.9‑1
Supported Host	Flex‑IQ only	All System2005 aPCI IPCs
RS232 Physical Port	0TB704.9 screw terminal	DB9 male connector
できる / X2X Termination	0TB704.9	0TB704.9
電気 / Baud / 温度	同一	同一
互換性	Not directly interchangeable	Not directly interchangeable

診断 & FailureMode Notes

LED behaviour: Each communication channel features transmitreceive status LEDs. Flashing = bus traffic present; steadyoff = no message activity.

Isolationcircuit damage symptom: External interference may crash the host IPC; one field interface can fail while the remaining two channels remain functional.