Fluke 2625A, 2620A user manual Setting Communication Parameters RS-232

2620A, 2625A

Users Manual

Setting Communication Parameters (RS-232)

Baud rate ("bAUd"), parity ("PAR"), and echo ("Echo") parameters can be set directly by the user; number of data bits and number of stop bits cannot be set. Refer to Figure 4- 1.

For the instrument and host to communicate via the RS-232 interface, the communication parameters of the instrument must match those of the host. RS-232 communication parameters can be set only from the front panel. If the communication parameters of the host and the instrument do not match, proceed as follows to select the appropriate baud rate and parity parameters for the instrument (summarized in Table 4- 1):

Parity = “E” or “Odd”

START 7 Bit Data

Parity = “No”

START 8 Bit Data

PARITY STOP

STOP

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	Figure 4-1. Data/Stop Bits
	Table 4-1. RS-232 Setup
Baud		Parity	Echo
(Note)

Press these buttons:

To select from these choices:

COMM

(K L)

G

D

IEEE

300

600

1200

2400

4800

9600

E

G

D

Odd

E

no

E

G

D

OFF

On

E

Note: If “IEEE” is selected here (2620A only), the RS-232 setup sequence is exited and the IEEE setup sequence is begun. Refer to Table 4-3.

1.Select COMM (KL).

2.The baud rate presently selected is now shown in the left display, and "bAUd" is shown in the right display. If "IEEE" appears, press Guntil a baud number appears.

3.Press Gor Dto scroll to the desired baud (9600, 4800, etc., but not "IEEE".) Press EEto select the displayed baud rate.

4."PAR" appears in the right display. The parity selection ("Odd", "E", or "no") is now shown in the left display.

4-4