ALR111-S51 Yokogawa Serial Communication Module

Yokogawa ALR111-S51 CENTUM VP Serial RS-232C Module

Yokogawa ALR111-S51 CENTUM VP Serial RS-232C Module

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Yokogawa ALR111-S51 CENTUM VP Serial Communication Module Configured for RS-232C serial interface operations in CENTUM VP control environments, the Yokogawa...

رمز المنتج: ALR111-S51

Manufacturer: Yokogawa
Product No.: ALR111-S51
Product Type: Serial Communication Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Yokogawa ALR111-S51 CENTUM VP Serial Communication Module

Configured for RS-232C serial interface operations in CENTUM VP control environments, the Yokogawa ALR111-S51 (Yokogawa ALR111 Serial Communication Module) provides direct physical/electrical execution of subsystem data link layers. The hardware establishes point-to-point data exchange pathways between field control stations and external peripheral devices without routing through auxiliary media converters.

Suffix Breakdown & Model Matrix

ALR111: Base model hardware code for the 2-port RS-232C serial communication module.
Standard Type Configuration (-S): Specifies standard performance hardware layout.
Explosion Protection Code (5): Designates hardware with no explosion protection ratings.
Environmental Resistance Rating (1): Identifies conformal coating compliance matching ISA Standard G3 specifications.

Hardware Specifications

Parameter	Specification
Model	ALR111-S51
Brand	Yokogawa
Origin	Japan
Weight	0.3 kg
Dimensions	12.7 x 5.1 x 12.7 cm
Operating Temp	0 to 55 deg C
Power Consumption	0.5 A current consumption via system bus
Interface Ports	2 x RS-232C channels
Communication Mode	Half-duplex operation
Physical Connectors	D-sub 9-pin female terminals
Baud Rates	300 to 19200 bps
Transmission Distance	Maximum 15 m
System Installation	AFV30, AFV40, A2FV50, A2FV70, ANB10, ANB11, ANR10, AFF50

Distributed Control System Subsystem Integration

The module executes serial data transfers across industrial networks using automated frame management utilities. The physical interface supports standard 4-20 mA HART loop protocol translation architectures by mapping variables directly to local distributed control system controller memories. Internal routing circuits deliver channel-to-channel isolation between serial channels, limiting signal skew and suppressing electrical ground loops across external telemetry cabling networks.

Frequently Asked Questions

Q: Can the physical serial channels on the module execute distinct protocol stacks simultaneously?

A: The internal processing architecture dictates that both integrated RS-232C ports execute identical communication functions. Split protocol configurations on separate channels are not supported by the module firmware.

Q: How does the communication module flag physical link errors to the host node?

A: The hardware incorporates autonomous parity checking and framing verification circuitry. When the module detects an invalid bit sequence, it reports a hardware framing fault flag directly to the active host Field Control Station.

Q: What action occurs if the module requires service during active backplane operations?

A: The hardware supports specific slot-level removal under power, provided all active communication tasks are suspended through system maintenance software prior to extraction to prevent backplane bus interruption.

Field Installation Guidelines

Chassis Mounting: Insert the module directly into designated slots of compatible base units, including ANB10 or ANB11 I/O nodes. Ensure the upper and lower mechanical latches lock securely to maintain backplane connection integrity.
Cabling Constraints: Interconnect external hardware using approved AKB131, AKB132, AKB133, or AKB134 cables. Restrict total copper cable runs to less than 15 m to maintain proper signal-to-noise thresholds.
Grounding Integrity: Securely fix the metal hoods of the D-sub 9-pin cabling to structural enclosure grounds. Shielding ground loops must be isolated to prevent common-mode electrical noise from injecting distortion into serial character frames.

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