NI MAX device identification error for a GPIB to Modbus 4899 controller

[Yu-ping Shao]

Hi all, this is my first post here.

I am attempting to control a Cincinnati EZT-560 from a PC through the use of ICS 4899 GPIB-to-ModBus controller. Right now, I just want to use the RS-232 mode on the 4899. I am having some trouble getting response from the 4899, so I am eliciting response to what might be happening.

The 4899 is receiving commands ok from the GPIB, but the response is always scrambled.

For example,

send:

*IDN?

receive:

ICS electr nics, 4899, soN 608024, rww 01.13 vws 01.03.10

send:

SYST:COMM:SER:PAR?

receive:

EWEO:

also

the receive vi is giving me a Generic I/O File Error (6)

I've checked the GPIB cable and it's working fine, I am wondering if it's problem with the 4899 controller on Cincinnati temp chamber.

[Simran_K]

Hi Yu-ping,

What programming language are you using to interface with the ICS Electronics 4899 controller? Have you downloaded the driver for the device?

Thank you,