Harris Industrial Resistance Testers

REMOTE OPTION FIRMWARE FOR X-SERIES METERS Harris IRT Enterprises, Inc. 740-369-3580 Delaware, OH 43015 In the original concept of the X-Series Ohmmeters, the possibility of operating them from a remote computer or PLC was planned in the circuit design. The Models 5050-06XP, the Model 5012-06XR and –XP and the Model 5060-06XR can now be purchased with the Remote Option Firmware. Older x-Series meters from IRT may be upgraded for a nominal bench charge. Please request quote and a return authorization. What can you do with the Remote Option? The Remote option permits you to operate the Range Select function, the High and Low Limit settings from the RS232 Serial Port. The Serial Port is included with all X-Series meters at no extra charge. It can still be used for data logging while using it for system control. What is the RS232 protocol used? The Serial Port is factory set for 9600 Baud, No Parity and an 8 bit word with 1 stop bit. (9600,N,8,1) There is no handshaking in hardware or software provided so your PLC port must be hardwired to accept incoming data or send new data without DTR and RTS lines connected. The Meter serial port is connected to the host computer or PLC with a common DB9 style extension cable. Male Pin 1 is connected to Female Pin 1, 2 to 2 etc. You can order an extension cable with your instrument. How does it Function? Transmitting Data Every time the Serial Port receives a Carriage Return [cr] it will send the current display reading as 6 ASCII characters, 5 numbers and a decimal point. This Data can be logged into ‘Hyperterm’or any ASCII terminal program and then uploaded to most spreadsheets for SPC analysis. How do I set the Range? In the switch selected Remote Mode the following characters are sent to the meter: * R n [cr] Where the ‘*’ defines a command, the ‘R’ defines a Range Setting, and the ‘n’ is an integer from 1 to 6 to select the meter range specified by the number. For example * R 3 [cr] would set the meter to the 20 Ohm Range on a 5050 or 5012. (Note: Always use Upper Case Letters in Commands) How do I set the High and Low Limits In the Remote Mode, send the following ASCII characters to the meter: * H n n n n [cr] to set the High Limit. Here the ‘*’ denotes a command, ‘H’ denotes the High Limit and n n n n are the four integers that represent the 4 most significant digits of the reading to be compared. The least significant digit is not used in the limit sensors. Notice that there is no provision for the decimal point and all four characters must be sent. For example: * H 1 2 3 4 [cr] would set the High Limit for 1.2340 Ohms on the 2 Ohm range, Range 2. To set the Low Limit simply substitute the ‘L’ character in place of the ‘H’ character used for the High Limit. How do I verify my Limits and Range Settings? There is a ? [cr] command that will ask the meter to report its present settings via the Serial Port. The meter will respond with (5 digit reading w/ dp) R n, L n n n n n, H n n n n, For Example if my display reading is 1.990 Ohms on Range 2 with a High Limit of 1.999 Ohms and a Low Limit of 1.989 Ohms my report would be: 1.9900 R2, L1989, H1999, Remember that the limits only compare the 4 Most Sginificant Digits of the reading and do not consider the decimal point at all. On the Model 5012-06XR and XP the GO relay contacts will close when the test measurement is between the High and Low Limits. The Model 5050-06XP will require the installation of a GO relay for this function to operate. When equipped with the new remote firmware and the GO relay the Model 5050-06XP will perform all of the functions of the more costly Model 5012-06XR or XP, except for stand alone operation of the Limit Sensor in the Local Mode. The remote option will soon also be available for the 5060-06XR where it should function in the same manner.

Shipping weight 0.01 lb