Anritsu MF2412B - 5.4 Device Message List

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5.4 Device Message List
5.4 Device Message List
5.4.1 Overview
Device messages refer to messages sent and received between a controller and device (in this case the MF2412B/
MF2413B/MF2414B) over the GPID interface. There are two types of device messages: program messages and response
messages. In addition, these messages consist of common commands conforming to IEEE 488.2 and messages unique to
this unit. For more information, refer to 5.4.2 “IEEE 488.2 Common Commands” and 5.4.4 “Device Message List.”
(1) Program messages
ASCII data messages sent by a controller to a device. The following describes the two kinds of messages :
1) Commands : Instruct the starting of parameter setup and measurement for a device.
2) Queries : These are commands that wait for device state. Use them when you want to output response
messages to a controller.
(2) Response messages
ASCII data messages sent by a device to a controller. These messages transfer device state information and measure-
ment data to the controller.
Device
MF2412B
/MF2413B
/MF2414B
Program message
Response message
Controller
When using device messages to send and receive numeric data such as frequencies, you can attach units (suffix code) to the
data being transferred. For example, if you want to set 1 MHz for the frequency data, you can attach a suffix code and send
1000000 Hz, 1000 KHz, or 1 MHZ instead of 1000000.
The following shows the suffix commands that this unit can use :
(1) Suffixes when transferring frequency data
Unit Suffix code (all suffixes converted to uppercase even if entered in lower case)
GHz GHZ , G
MHz MHZ , MA
kHz KHZ , K
Hz HZ
Default HZ
(Millihertz : No support for mHz)