Dditional Resources; Communication Channels - LOVATO ELECTRIC DMG800 Manuel D'application

W RNING!
When the EXP.. module is installed on a DMG series multimeter, it is mandatory to install the sealable terminal block covers supplied with the multimeter.
– When a DMG800 is powered on, it automatically recognises the EXP modules that have been mounted.
– If the system configuration has changed with respect to the last saved, (one module has been added or removed), the base unit asks the user to confirm the
new configuration. In case of confirmation, the new configuration will be saved and will become effective, otherwise the mismatch will be shown at every
subsequent power-on of the multimeter.
– The actual system configuration is shown in the dedicated page of the display (expansion modules), where it is possible to see the number, the type and the
status of the modules.
– The I/O numbering is shown under each module.
– The status (energised/de-energised) of every single I/O and communication channel is highlighted in reverse
1 - No. and status of communication channel
2 - Type of the expansion module
3 - Numbering and status of the I/Os
DDITION L RESOURCES
– The expansion modules provide additional resources that can be used through the dedicated setup menus.
– The setup menus related to the expansions are always accessible, even if the expansion modules are not physically fitted.
– Since it is possible to add more than one module of the same typology (for instance two communication interfaces), the setup menus are multiple, identified
by a sequential number.
– The following table indicates how many modules of each group can be mounted at the same time. The total number of modules must be less or equal than 4.
TYPE OF MODULE
COMMUNIC TION
DIGIT L I/O
N LOG I/O
MEMORY
COMMUNIC TION CH NNELS
– The DMG800 supports a maximum of 2 communication modules, indicated as COMn. The communication setup menu M07 is thus divided into two sections
(n=1 and n = 2) of parameters for the setting of the ports.
– The communication channels are completely independent, both for the hardware (physical interface) and for the communication protocol.
– The two channels can communicate at the same time.
– ctivating the Gateway function it is possible to use a DMG800 with both an Ethernet port and a RS485 port, that acts as a bridge over other DMGs equipped
with RS-485 only, in order to achieve a more economic configuration (only one Ethernet port).
In this network, the DMG with two communication ports will be set with both communication channels (COM1 and COM2) with Gateway parameter set to
ON, while the other DMGs will be configured normally with Gateway = OFF.
CODE FUNCTION
EXP 10 10 USB
EXP 10 11 RS232
EXP 10 12 RS485
EXP 10 13 Ethernet
®
EXP 10 14 Profibus DP
EXP 10 00 4 INPUTS
EXP 10 01 4 ST TIC OUTPUTS
EXP 10 02 2 INPUTS +
2 ST. OUTPUTS
EXP 10 03 2 REL YS
EXP 10 04 2 N LOG
INPUTS
EXP 10 05 2 N LOG
OUTPUTS
EXP 10 30 D T MEMORY +
RE L TIME CLOCK
G
B
M X No.
2
2
2
4
4
4
4
1
7