MBUS-M13 - User manual
of the module.
The variant MBUS-M13-G has no unit for galvanic isolation. It is suitable for simple systems. The connection
is established through the connector X1.
The variant MBUS-M13-M has no internal 3.3 V power supply and no galvanic isolation. The connection is
established exclusively through the connector X1.
In the variants -S and –G, the internal 3.3 V power supply can also be used for direct connection of small
logic modules (e.g.: a microcontroller with LCD display). In that way, certain compact applications such as a
gateway or a data logger only need a single 24 VDC.
The internal 3.3 V supply can handle loads with a maximum current consumption of 50 mA.
Variant
Order number
MBUS-M13-S
500325
MBUS-M13-G
500327*
MBUS-M13-M
500328*
*Available upon request
Table 3: Delivery variants
Variants with population are available upon request.
2.4 Connectors
The module MBUS-M13 is connected via pin headers with a spacing of 2.54 mm. The following figure shows
a top view:
Figure 2: Top view on MBUS-M13 with connectors
The function of each pin will be explained in following tables.
2.4.1 Terminals at the edge for pin headers
Terminal
Description
-S
-G
-M
TP_VDD
galvanically isolated logic, supply 3,0 V...5,0 VDC
VDDiso
nc
nc
TP_RX
galvanically isolated logic, UART Receiver (to RX)
RXiso
nc
nc
TP_TX
galvanically isolated logic, UART Transmitter (to TX)
TXiso
nc
nc
TP_GND
galvanically isolated logic, supply (ground)
GNDiso
nc
nc
TP_MR
do not connect
nc
nc
nc
TP_MT
do not connect
nc
nc
nc
Continued on next page
Page 10/18
UG_EN_MBUS-M13.pdf
Version: 1.09
Released
Frank Richter, 6 December 2022
© solvimus GmbH
