coval LEMCOM Series - 2020 H - Vacuum Level Process Value

LEMCOM CANopen® – User manual Detailed description of CANopen objects
COVAL – LMCOP-EN-A-1155UM0068 26/49
12.3 2020h – Vacuum level process value
The instantaneous value of the vacuum level of each module can be accessed using the following
SDO command:
Client (master)  server (LEMCOM)
CAN-ID
(600h+ID)
620h
Command
40h
Object L
20h
Object H
20h
Subindex
Module no.+1
Byte 0
00h
Byte 1
00h
Byte 2
00h
Byte 3
00h
The subindex is used to define the module to query (from 1 to 16):
- Subindex = 0x01  request for vacuum process value on master module (address #0)
- Subindex = 0x02  request for vacuum process value on secondary module at address #1
- …
- Subindex = 0x10  request for vacuum process value on secondary module at address #15
The reply is as follows:
Server (LEMCOM)  Client (master)
CAN-ID
(580h+ID)
5A0h
Command
4Bh
Object L
20h
Object H
20h
Subindex
Module no.+1
Byte 0
00h
Byte 1
00h
Byte 2
00h
Byte 3
00h
The value of the vacuum level is provided in hexadecimal format by
Byte 1 – Byte 0
VACUUM LEVEL
The value of the vacuum level ranges from 0 to 100%.