Product name:

Product model: IS200VSCAH2A

Quantity: inventory

Part No./PN: IS200VSCAH2A

Warranty: We provide warranty service for IS200VSCAH2A

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GE General Electric Technical Specifications: IS200VSCAH2A

This is the address of the slave device intended to receive the packet sent by the master and perform the

IS200VSCAH2A desired action. Each slave device on a communication bus must have a unique address to prevent bus conten

tion. All the relay ports have the same address which is programmable from 1 to 254; see Section 8.2: COM

MUNICATIONS on page 8–2. Only the addressed slave will respond to a packet that starts with its address.

Note that the front port is an exception to this rule; it will act on a message containing any slave address.

A master transmit packet with a slave address of 0 indicates a broadcast command. All slaves on the commu

IS200VSCAH2A nication link will take action based on the packet, but none will respond to the master. Broadcast mode is only

recognized when associated with FUNCTION CODES 05h, 06h, and 10h. For any other function code, a

packet with broadcast mode slave address 0 will be ignored. See Section 16.3.11: CLOCK SYNCHRONIZA

TION OF MULTIPLE RELAYS on page 16–12 for an example of broadcast mode.


brand Product Name Product model Order No
GE Fanuc Module card IS200VSCAH2A nothing
Place of Origin Marketable land Imported or not defects liability period
Europe and America Nationwide and overseas yes a year
Place of shipment Delivery method How to use Applicable industries
Xiamen Shunfeng Express Commissioning and installation Power Plant Steel Plant Cement Plant Shipboard Papermaking
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This is one of the supported functions codes of the 750/760 which tells the slave what action to perform. See

IS200VSCAH2A Section 16.3.4: SUPPORTED FUNCTION CODES on page 16–5 for complete details. An exception response

from the slave is indicated by setting the high order bit of the function code in the response packet. See Sec

tion 16.3.10: EXCEPTION RESPONSES on page 16–11 for further details.


This will be a variable number of bytes depending on the function code. This may include actual values, set

points, or addresses sent by the master to the slave or by the slave to the master.


This is a two byte error checking code. The RTU version of Modbus includes a 16 bit cyclic redundancy check

(CRC-16) with every packet which is an industry standard method used for error detection. If a GE Power Man

agement Modbus slave device receives a packet in which an error is indicated by the CRC, the slave device

IS200VSCAH2A will not act upon or respond to the packet thus preventing any erroneous operations. See Section 16.3.3: CRC-

16 ALGORITHM for a description of how to calculate the CRC.


A packet is terminated when no data is received for a period of 3.5 byte transmission times (about 15 ms at

2400 baud, 2 ms at 19200 baud). Consequently, the transmitting device must not allow gaps between bytes

longer than this interval. Once the dead time has expired without a new byte transmission, all slaves start lis

tening for a new packet from the master except for the addressed slave.

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