VII
LEMCOM
Quick Start Guide
1
2-1
2-2
3
Property
Description
Vendor name
COVAL
Vendor ID
1350
D
Device type
43
D
Product name
COVAL LemCom E/IP
Catalog ID
LEMCOM
Request Packet Interval (RPI)
≥
5 ms
Assembly
instance Type
Data
size
(bytes)
Description
101
INPUT
3
Gripping status (2 bytes)
Heartbeat (1 byte)
102
INPUT
19
Gripping status (2 bytes)
Heartbeat (1 byte)
Vacuumlevel (16 bytes)
140
INPUT
34
Heartbeat (1 byte)
Unused (1 byte)
Island composition (2 bytes)
Gripped information (2 bytes)
Regulation information (2 bytes)
Vacuumlevel-% vacuum (16 bytes)
Lost part alarm (2 bytes)
Regulation error alarm (2 bytes)
30MCycles alarm (2 bytes)
Temperature alarm (2 bytes)
Powersupply alarm (2 bytes)
141
INPUT
78
Heartbeat (1 byte)
Selected module in instance (1 byte)
Island composition (2 bytes)
Gripped information (2 bytes)
Regulation information (2 bytes)
Vacuumlevel-% vacuum (16 bytes)
Lost part alarm (2 bytes)
Regulation error alarm (2 bytes)
30MCycles alarm (2 bytes)
Temperature alarm (2 bytes)
Powersupply alarm (2 bytes)
---------------------------------------
Counter-external vacuum cmd (4 bytes)
Counter-internal vacuum cmd (4 bytes)
Counter-blow off cmd (4 bytes)
Counter-Handled parts (4 bytes)
Counter-Lost parts (4 bytes)
Counter-ASC regulation (4 bytes)
Counter-Regulation errors (4 bytes)
Counter-Local bus com error (4 bytes)
Counter-Field bus com error (4 bytes)
Counter-Power supply error (4 bytes)
Power supply (2 bytes)
Temperature (2 bytes)
Assembly
instance
Type
Data
size
(bytes)
Description
100
OUTPUT
4
Vacuum control (2 bytes)
Blow-off control (2 bytes)
110
OUTPUT
6
Vacuum control (2 bytes)
Blow-off control (2 bytes)
Island restart (1 byte)
Unused (1 byte)
111
OUTPUT
6
Vacuum control (2 bytes)
Blow-off control (2 bytes)
Island restart (1 byte)
Module selection for diagnostic (1 byte)
112
OUTPUT
74
Vacuum control (2 bytes)
Blow-off control (2 bytes)
Island restart (1 byte)
Settings modification allowed (1 byte)
L1 threshold (16 bytes)
h1 threshold (16 bytes)
L2 threshold (16 bytes)
h2 threshold (16 bytes)
ASC option (2 bytes)
DIAG_ECO option (2 bytes)
Assembly
instance
Type
Data
size
(bytes)
Description
160
CONFIG
166
L1 threshold (16 bytes)
h1 threshold (16 bytes)
L2 threshold (16 bytes)
h2 threshold (16 bytes)
ASC option (2 bytes)
DIAG_ECO option (2 bytes)
Max. bounces Nb (16 bytes)
DIAG_ECO analysis time (16 bytes)
Auto blow (2 bytes)
Auto blow duration (32 bytes)
Valves status (16 bytes)
Custom led mode (16 bytes)
QSG EIP LEMCOM EN (v04-2020) - 7 -
VII- EtherNet/IP™ communication
Please refer to the main user manual (ref. LMEIP-UK-x-1155UM0067) for detailed set-
up instructions, data mapping and general recommendations.
1- LEMCOM general properties
With respect to the EtherNet/IP network, the LEMCOM master module is an
EtherNet/IP
adapter
.
It receives implicit communication connection requests from an I/O scanner (the Programmable
Logic Controller) then produces or consumes its I/O data based on a Requested Packet Inter-
val (RPI) value.
2- I/O assembly instances
Input and output data refer to the master module and to the secondary modules that may be as-
sociated with it.
As an example:
“Vacuum Control” output data consists of 2 bytes and each bit toggles the vacuum of LEMCOM
module #0 (master) to #15 (last secondary).
“Vacuum level” input data consists of 16 bytes and each byte represents the instant vacuum
level (%) of LEMCOM module #0 to #15.
For best performance and sufficient diagnostic data, we recommended using I/O assembly
instances 140 and 110.
2-1 Input instances (Target > Originator)
Data sent from the LEMCOM island to the controller every ‘RPI’ ms.
Note: Input instance 141 is designed to be used with output instance 111.
2-2 Output instances (Originator > Target)
Data sent from the controller to the LEMCOM island every ‘RPI’ ms.
In this assembly, the first bit of byte 5 allows or rejects the modification of the LEMCOM module’s
settings. When it is enabled, the parameters data set defined in bytes 6 to 73 are automatically
sent to the LEMCOM master module every ‘RPI’ ms.
We highly recommend setting the “settings modification allowed” bit to ‘0’ in the PLC’s pro-
gram and only toggling it to ‘1’ when new settings must be applied.
3- Configuration instance
The configuration assembly instance 160 is used to transfer the vacuum settings to all LEMCOM
modules of an island (1 to 16 modules). The parameters are sent by the PLC to the master LEM-
COM module when the EtherNet/IP communication is established.
Please note that, unlike LEMCOM Manager, which warns the user in case of incorrect parame-
ters, the configuration assembly lets the user send any settings. This may lead to the appearance
of warnings on the module’s front panels (for example: threshold or hysteresis set to 0).
The output instance 112
is designed for specific applications that need to edit the
LEMCOM module’s parameters directly from the PLC or an EtherNet/IP HMI. It must
be used with special care.
If the configuration instance is used, please note that any modifications made to the
settings using LEMCOM Manager will be overwritten by the data of instance 160 the
next time communication is reset.
