ICS Modbus Interface Board 4809A

Levertijd:
3~4 weken
SKU
4809A

GPIB to Modbus RTU Interface Board

● Converts simple ASCII commands into Modbus RTU messages. Relieves user from having to generate and check RTU packets.
● Expanded Modbus RTU Command Set now includes Floating Point commands. Controls a wider range of Modbus devices.
● Provides both single ended RS-232 and balanced RS-422/RS-485 serial signals. Connects to single and multiple Modbus devices.
● GPIB Interface is IEEE-488.2 Compliant. Meets latest GPIB Standards.
● Saves GPIB address, serial settings and user IDN message in non-volatile memory. Personalize the 4809 as part of your system.
● Diagnostic LEDs show address and status. Visual indication of operation and test status.
● Operates on +5 to 15 Volt power. Uses existing power supplies in most cases.

ICS Modbus Interface Board 4809A GPIB<->Modbus Interface is an IEEE 488.2/GPIB to Serial Interface that easily adapts Modbus slave devices to the GPIB or HP-IB bus. The 4809A lets the user send simple read-write messages on the GPIB bus to control and query slave Modbus devices. The ICS Modbus Interface Board 4809A does all of the Modbus packet formatting and handles the response packets. The 4809A has both RS-232 and RS-485 interfaces so it can be connected directly to a single Modbus slave device or it can be connected to multiple Modbus devices via an RS-485 network. The 4809A firmware has an expanded Modbus command set and now includes 32-bit floating point commands so it can control newer temperature controllers. The ICS Modbus Interface Board 4809A is fully backward compatible with the earlier 4809.

Meer informatie
Art.nr.
4809A
Fabrikant
ICS Electronics
Land van herkomst
Verenigde Staten
488 Bus Performance
IEEE 488 Bus Interface
The 4809A’s 488 Bus Interface meets IEEE STD 488.2-1987 and has the following capabilities:
SH1, AH1, T5, L3, SR1, PP0, DC1 RL0, DT0, C0 and E1/E2 drivers
Bus drivers incorporate power up/down protection to prevent glitching the bus during power turn-on.
Address Capability Primary addresses 0 ~ 30
Buffers
GPIB Input 2 Kbytes
GPIB Input 1 Kbytes
Serial Input/Output 256 bytes
Status Reporting Structure IEEE-488.2 and SCPI Status Byte, ESR, Questionable and Operational Registers.
SRQ Generation SRQs are generated per the IEEE-488.2 specification if the unit is not addressed to talk, if SRQs are enabled and if an enabled register bit occurs.
488.2 Commands *CLS, *ESE, *ESE?, *ESR?, *IDN?, *OPC, *OPC?, *PSC, *RST, *SAV, *SRE, *SRE?, *STB, *TST?, and *WAI.
SCPI Commands
The 4899A conforms to the SCPI 1994.0 Specification and uses SCPI commands to set:
GPIB Bus Address
External GPIB Address Enable
Baud rate select
Data bits 7 or 8
Stop bits 1 or 2
Parity Odd, Even or None
RS485 Half-Duplex operation
Talk Format HEXlist or ASCII
Interface Specifications

Full duplex serial interface with single ended RS-232 and differential RS-422 (RS-485) signals. Signal selection made by jumpers on the 4899A. RS-485 half duplex operation enabled with a SCPI command.

RS-232 Signals TxD, RxD, RTS, CTS, DSR and DTR
RS-422 Signals Tx and Rx pairs
Baud Rates 300, 600, 1.2K, 2.4K, 4.8K, 9.6K, 19.2K and 38.4K baud
Data Bits 7 or 8 bits
Parity Odd, Even or None
Stop Bits 1 or 2
Modbus Commands
Modbus commands accept ASCII decimal values or HEX values starting with #h. Code is the Modbus RTU command code produced by the 4899A. Integer and register values from 0 to 65,535. Floating Point per IEEE-754.
Compatible Controllers
The following is a partial list of compatible Modbus RTU Slave Controllers:
Watlow F4, 96, SD and EZ Zone series
Cincinnati SubZero EZT550
Controls and Indicators
Indicators
PWR On when power applied
RDY On when passed self test
TALK On when addressed to talk
LSTN On when addressed to listen
SRQ On when asserting SRQ
ERR On when ESR error bits set
Grootte
139.7 x 114.3 x 12.7mm (L x W x H)
Connectors and Headers
Three flat ribbon headers
GPIB 24-pin 3M 2524 male connector mates to panel mounted GPIB connector.
GPIB/Addr 26-pin 3M 2526 male connector mates to ICS GPIB/Connector Switch Assemblies.
Serial 26-pin 3M 2526 male connector mates to a DB-25 pin connector.
Omgeving
Operating Temperature -10 °C ~ +55 °C
Storage Temperature -20 °C ~ +85 °C
Humidity 0-90% RH without condensation
Power
+5 to + 15 VDC 400 mA (typical)
ICS Modbus Interface Board 4809A aanpassen
Aantal
Aantal

* Verplichte velden

Uw configuratie
GPIB to Modbus RTU Interface Board
ICS Modbus Interface Board 4809A
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