MICRO-EPSILON ILD1700-2 - Synchronous and Trigger Mode

Page 83
Serial Interface RS422
optoNCDT 1700
8.5.13 Synchronous and Trigger Mode
Name: SET_SYNCMODE/TRIGGERMODE
Synchron mode: This command can be used for synchronizing two (or more) sensors with each other.
One sensor functions as the master, the other as the slave. Master and Slave alternately measure in alternat-
ing mode to avoid interference of each other when measuring on transparent objects.
Advice: The same measurement frequency (speed) must be set for the master and the slave, otherwise there
is a risk of unreliable measurements.
Trigger mode: The synchron lines are used as trigger inputs. Four trigger types are available:
Format: 31 24 23 16 15 8 7 0 hex
„+“ „+“ „+“ 0x0d („CR“) 0x2B2B2B0D
„l“ „L“ „D“ „1“ 0x494C4431
0x20 0x82 0x00 0x03 0x20820003
0x00 0x00 0x00 0x0X 0x0000000X
Reply: 31 24 23 16 15 8 7 0 hex
„l“ „L“ „D“ „1“ 0x494C4431
0xA0 0x82 0x00 0x02 0xA0820002
0x20 0x20 0x0D 0x0A 0x20200D0A
Options:
X = 0 > Synchronous
master off
X = 1 > Synchronous
master on
X = 2 > Slave
X = 3 > Alternating
synchronous master
Options:
X = 0 > edge LH,
X = 1 > edge HL,
X = 2 > level high,
X = 3 > level low.