as this is my first post I want to say hello to everybody in this forum. I am facing a problem trying to communicate with a JZ-11 via the serial port.
My environment: Linux box (raspberry pi) connected to Jazz via USB program cable (which is working fine as I can communicate with this cable on a Win 7 64 Bit box), serial line parameters are
9600 baud, 8bit, No parity, 1 stop bit. I am sending an ASCII-based string to the Jazz to read the RC-clock value as described in http://www.unitronics.com/docs/technical-library/com.pdf?sfvrsn=0. For communcation I am using a serial class library for Python (pySerial). The string I send is "/00RCF5\r" which correspondes to the "Read RTC" command (page 6 in the Unitronics document).
Unfortunately when waiting for a reply from the Jazz I am waiting forever.
Does anybody have an idea how I can solve this issue?
Serial communication problem with Jazz JZ10-11-R16
in Jazz, M91 PLCs and U90Ladder
Posted
Hi,
as this is my first post I want to say hello to everybody in this forum. I am facing a problem trying to communicate with a JZ-11 via the serial port.
My environment: Linux box (raspberry pi) connected to Jazz via USB program cable (which is working fine as I can communicate with this cable on a Win 7 64 Bit box), serial line parameters are
9600 baud, 8bit, No parity, 1 stop bit. I am sending an ASCII-based string to the Jazz to read the RC-clock value as described in http://www.unitronics.com/docs/technical-library/com.pdf?sfvrsn=0. For communcation I am using a serial class library for Python (pySerial). The string I send is "/00RCF5\r" which correspondes to the "Read RTC" command (page 6 in the Unitronics document).
Unfortunately when waiting for a reply from the Jazz I am waiting forever.
Does anybody have an idea how I can solve this issue?
Thanks in advance,
Markus