1
MC100 Series PLC Passive I/O
Extension Module User Manual
Please allow us to congratulate you on choosing an Megmeet
programmable logic controller (PLC). Before using the
MC100 series PLC product, please carefully read this book
so as to fully understand its characteristics, use it safely and
bring its functions into full play.
Note:
To reduce the chance of accident, please carefully read the
operating instructions and safety precautions prior to use.
Only adequately trained personnel shall install or operate this
product. In operation, strict compliance with applicable safety
rules in the industry, the operating instructions and safety
precautions in this book is required.
1 Introduction
1.1 Appearance And Structure
The appearance and structure of I/O extension module are
shown in the following figure.
Extension port
DIN clip
Connecting terminal
Product label
Extension cable
Extension cable plug
Connecting terminal cover
Extension port cover
Status indicator
Figure 1-1 Appearance and structure
1.2 Model Designation
The model designation is shown in the following figure.
MC 1 0 0 -0808 E
N
A: AC220V power input
D: DC24V power input
N: no external power input
Output points: 16
Megmeet Controller module
Serial No.: 1: mini. 2: small. 3:
middle. 4: large.
Version No.
R: Relay mode
T: Transistor mode
Input points: 16
Sub-version, indicating the function/
structural change to the mainstream
module, following the alphabetic order
B: Basic module
E: Extension module
R
Figure 1-2 Model designation
1.3 Terminal Introduction
MC100-0808ERN, MC100-0808ETN
Pin
Function
S/S
Input mode selection: sink mode when connected
with +24V, or source mode when connected with
COM
Null, for isolation. Leave it suspended
X0 ~ X7
Digital input, work with COM to generate input
signal
Y0 ~ Y7, COM0 Digital output
MC100-0800ENN
Pin
Function
S/S
Input mode selection: sink mode when connected
with +24V, or source mode when connected with
COM
Null, for isolation. Leave it suspended
X0 ~ X7
Digital input, work with COM to generate input
signal
MC100-0008ERN, MC100-0008ETN
Pin
Function
S/S
Input mode selection: sink mode when connected
with +24V, or source mode when connected with
COM
Null, for isolation. Leave it suspended
Y0 ~ Y7, COM0 Digital output
2 Power Supply
Table 2-1 I/O extension module type and configuration
Type
Power supply
voltage Vac
Number of I/O
channels
Output
type
MC100-0800ENN
-
8/0
-
MC100-0808ERN
-
8/8
Relay
MC100-0808ETN
-
8/8
Transistor
MC100-0008ERN
-
0/8
Relay
MC100-0008ETN
-
0/8
Transistor
