TDK Lambda | Z+Low Voltage User Manual

7.9 Serial Communication Test Set-Up Basic set-up to test serial communication operation.

PC with Windows Hyper Terminal, private edition, software installed, Z + power supply, RS232 cable.

1. Equipment:

2. PC set-up:

2.1 Open Hyper Terminal.......................New Connection. 2.2 Enter a name 2.3 Connect to.......................................Direct to Com1 or Com 2 2.4 Configure port properties:

Bits per second .......9600 Data bits ..................8 Parity .......................None Stop bits....................1 Flow control..............None

2.5 Open Properties in the program File...........................Properties 2.6 Setting: ASCII Set Up Select Echo characters locally, select send line ends with line feed. On some PC systems, pressing the number keypad ”Enter”will distort displayed messages. Use the alphabetic ”Enter” instead.

3. Power supply set-up:

3.1 Connect the power supply to the PC using the RS232 cable. 3.2 Set via the front panel: Baud Rate: 9600, Address: 06, RS232, GEN Language

4. Communication test:

4.1 Model identification: PC: write: ADR 06 Power supply response: ”OK” 4.2 Command test: PC write: OUT 1 Power supply response: ”OK” PC write: PV n (for n values see Table 7-5) Power supply response: ”OK” PC write: PC n (for n values see Tables 7-6, 7-7 and 7-8) Power supply response: ”OK” The power supply should turn on and the display will indicate the output voltage and the actual output current.

7.10 SCPI Protocol

NOTE: Selecting the power supply (INSTrument:NSELect