Megmeet MC200-8AD User Manual

MC200-8AD Analog Input Module
User Manual
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 Product Description

1.1Function
● MC200-8AD analog input module (or MC200-8AD) is applicable to
MC200 series PLC. It is one of MC200 PLC's extension modules, also a
special function module.
● MC200-8AD can convert the input analog signal into digital signal, with its
8 analog signal input channels. The AD conversion resolution is 12 bits.
● Easy selection between voltage and current input signal through
connection and easy selection among different measurement ranges of
–10V~10V, –5V~5V/–20mA~20mA and –100mV~100mV through
programming.
● MC200-8AD exchanges information with the basic module through Buffer
Memory (BFM). The BFM has 68 units, each consisting of 16 bits.
● MC200-8AD digital part consumes a maximum current of 70mA (5V),
analog part consumes a maximum current of 50mA (24V).
1.2 Structural Dimensions
See Figure 1-2 for MC200-8AD dimensions. Weight: 0.3kg.
82
Figure 1-2 MC200-8AD structural dimensions (Unit: mm)

2 Port Description

2.1 Appearance
MC200-8AD extension cable port and user port are both covered up, as
shown below:
Extension port cover
User port cover
Figure 2-1 MC200-8AD port appearance (covered)
Open the cover, you will see the extension cable port and user port as shown
in Figure 2-2.
The extension cable connects MC200-8AD to the system, while the extension
port connects MC200-8AD to another extension module of the system. See
section 2.3 Connecting Into System for details.
4.5
Φ
58
Extension cable
2.2 Port Description
MC200-8AD user port is defined in Table 2-1.
User port
2 4
1 3
24V-
24V+ VI- V1+
Figure 2-2 MC200-8AD port diagram (covers removed)
Table 2-1 MC200-8AD user port definition
Terminal
Name
1 Analog power supply 24V+
24V+
Analog power supply 24V-
2 24V-
Analog channel signal negative input
3 VI-
GND
4
Positive voltage analog-signal input of CH1
5 V1+
Positive voltage analog-signal input of CH2
6 V2+
Positive current analog-signal input of CH1
7 I1+
Positive current analog-signal input of CH2
8 I2+
Positive voltage analog-signal input of CH3
9 V3+
Positive voltage analog-signal input of CH4
10 V4+
Positive current analog-signal input of CH3
11 I3+
Positive current analog-signal input of CH4
12 I4+
Positive voltage analog-signal input of CH5
13 V5+
Positive voltage analog-signal input of CH6
14 V6+
Positive current analog-signal input of CH5
15 I5+
Positive current analog-signal input of CH6
16 I6+
Positive voltage analog-signal input of CH7
17 V7+
Positive voltage analog-signal input of CH8
18 V8+
Positive current analog-signal input of CH7
19 I7+
Positive current analog-signal input of CH8
20 I8+
Note: an input channel cannot receive both voltage signals and current signals at
the same time. If you intend to use a channel for current signal measurement, short
its voltage signal input terminal and current signal input terminal.
2.3 Connecting Into System
MC200-8AD is applicable to MC200 series PLC system. It connects to the
system through its extension cable, as shown in Figure 2-3. You can connect
it to the system simply by inserting its extension cable into the extension port
of the basic module or any other extension module in the system.
Removing extension port cover
before connection
Basic module
Extension cable
Figure 2-3 Connection between MC200-8AD and basic module
After being connected into the system, MC200-8AD's extension port can be
used for connection with other MC200 series extension modules, such as IO
extension module, MC200-4DA, MC200-4TC, and of course MC200-8AD.
You can extend the basic module of MC200 series PLC by adding multiple IO
extension modules and special functional modules. The quantity of the
extension modules that can be added depends on the power capacity of the
basic module. For details, refer to the section of MC200 Series PLC User
Manual dealing with power capacity.
Extension port
2 26
25
6 8 10 12 14 16 18
5 7 9 11 13 15 17 19
V2+ I2+ V4+ I4+ V6+ I6+ V8+
I1+ V3+ I3+ V5+ I5+ V7+ I7+
EC -8AD
20
Extension cable
Description
Extension module
20
I8+
1