Chroma 19071 User Manual

RS485 Interface (For Link Model of 19073 + RS485)
5-11
Preset Parameters
Description: It sets all parameters of Preset.
Command code: 0x25
Parameter: 6 bytes
Name
Size (byte)
Unit
Range
Description
AC Frequency
1
Hz
50/60
Software AGC
1
-
0/1
0:OFF, 1:ON
WV Auto Range
1
-
0/1
0:OFF, 1:ON
IR Auto Range
1
-
0/1
0:OFF, 1:ON
GFI(Ground Fault Interrupt)
1
-
0/1
0:OFF, 1:ON
Fail Restart
1
-
0/1
0:OFF, 1:ON
Screen
1
-
0/1
0:OFF, 1:ON
Return data: Reply Message
Example: Master (0x70): 0xAB 0x01 0x70 0x08 0x25 0x32 0x00 0x01 0x00 0x01
0x01 0x00 0x2D
Slave (0x01): 0xAB 0x70 0x01 0x02 0x7F 0x00 0x0E
Descriptions of example
The setting meanings of HEX inputs are as the following:
0xAB = Header
0x01 = Destination Address
0x70 = Source Address
0x08 = Data Field Length
0x25 = Command Code
0x32 = ACV Frequency 50Hz
0x00 = Software AGC OFF
0x01 = WV Auto Range ON
0x00 = IR Auto Range OFF
0x01 = Ground Fault Interrupt (GFI) ON
0x01 = Fail Restart ON
0x00 = Screen OFF
0x2D = Checksum
The reading meanings of returning HEX code are as the following:
0xAB = Header
0x70 = Destination Address
0x01 = Source Address
0x02 = Data Field Length
0x7F = Reply Message Command Code
0x00 = Reply Message Return Data
0x0E = Checksum
Preset Parameter?
Description: It queries all parameters of Preset.
Command code: 0xA5
Parameter: None
Return data: 6 bytes
Example: Master (0x70): 0xAB 0x01 0x70 0x01 0xA5 0xE9
Slave (0x01): 0xAB 0x70 0x01 0x08 0xA5 0x3C 0x01 0x00 0x01 0x01
0x00 0x01 0xA2

Chroma 19071 Specifications

General

Brand	Chroma
Model	19071
Category	Test Equipment
Language	English