Network-related products |
Programmable Controllers MELSEC
CC-Link IE Line Up

Safety Remote I/O Modules
CC-Link IE Field Network safety remote I/O modules
- Remote I/O modules that support safety functions of CC-Link IE Field Network
- Performs safety control when used together with the MELSEC iQ-R Series safety CPU
Safety protocol versions and safety communication standards
Safety communication of the CC-Link IE Field Network complies with safety communication standards (IEC61784-3). Please note that said standards of different publication year applies to each safety protocol version.
Safety protocol version | Safety communication standards publication year |
---|---|
1 | IEC 61784-3: 2010 |
2 | IEC 61784-3: 2021 |
Safety protocol versions vary depending on the product types and firmware versions.
Please refer to the connectability of the master stations and safety remote I/Os below.
For how to check firmware versions, please refer to the relevant product manuals.
Connectability of the master stations and safety remote I/Os

Master station
Safety protocol versions: 1, Safety protocol versions: 2
Safety CPU module
(firmware version 29 or late)
Master module RJ71GF11-T2
(firmware version 70 or later)
Safety protocol version: 1
Safety CPU module
(firmware versions 01 to 28)
Master module RJ71GF11-T2
(firmware versions 06 to 69)
Safety remote I/O
Safety protocol version: 2
Safety remote I/O: Model name ends with “-S1”
NZ2GNS12A2-14DT
NZ2GNS12A2-16DTE
Safety protocol version: 1
Safety remote I/O: Model name does not end with “-S1”
●: System configuration is possible;○: possible with constraints*1;-: not possible
Connected device | Safety remote I/O | |||
---|---|---|---|---|
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Master station Firmware version |
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● | ○*1 | ○*1 |
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- | - | ○*1 |
- *1.Although a system can be configured, it is not possible to newly acquire a certification from a third-party certification body. As compliance with the latest standard is required to acquire a certification, it is recommended that only products that support safety protocol version 2 be used when acquiring a certification.
Safety protocol version: 2

Model | Input type DC input |
Input points | Rated input voltage/ current |
Wiring type | Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|
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NZ2GFSS2-8D-S1 | Negative common | Single wiring: 8 points Double wiring: 4 points |
24 V DC (7 mA) | 2-wire | ● | ● | - |
NZ2GFSS2-32D-S1 | Negative common | Single wiring: 32 points Double wiring: 16 points |
24 V DC (6 mA) | 2-wire | ● | ● | - |
Safety protocol version: 2

Model | Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type | Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|
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NZ2GFSS2-8TE-S1 | Source + source | Single wiring: 8 points Double wiring: 4 points |
24 V DC (0.5 A/point) | 2-wire | ● | ● | - |
Safety protocol version: 2

Model | Input type DC input |
Input points | Rated input voltage/ current |
Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type |
Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|---|---|---|
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NZ2GFSS2-16DTE-S1 | Negative common |
Single wiring: 8 points Double wiring: 4 points |
24 V DC (7 mA) |
Source + source |
Single wiring: 8 points Double wiring: 4 points |
24 V DC (0.5 A/ point) |
2-wire | ● | ● | - |

Model | Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type |
---|---|---|---|---|
NZ2EXSS2-8TE*2 | Source + source | Single wiring: 8 points Double wiring: 4 points |
24 V DC (0.5 A/point) | 2-wire |
- *2.This product is connectable with safety input modules (NZ2GFSS2-32D, NZ2GFSS2-32D-S1).
Safety protocol version: 2
Safety waterproof/dustproof type (IP67) I/O combined modules
Waterproof connector (screw lock)

Model | Input type DC input |
Input points | Rated input voltage/ current |
Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type |
Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|---|---|---|
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NZ2GNS12A2-14DT | Negative common |
Single wiring: 12 points Double wiring: 6 points |
24 V DC (6.8 mA) |
Source + sink | Single wiring: not possible Double wiring: 2 points |
24 V DC (2 A/point, 4 A/point 6 A/common)*3 |
2-wire | - | ● | - |
NZ2GNS12A2-16DTE | Negative common |
Single wiring: 12 points Double wiring: 6 points |
24 V DC (6.8 mA) |
Source + source | Single wiring: 4 points Double wiring: 2 points |
24 V DC (2 A/point, 4 A/point 8 A/common)*3 |
2-wire | - | ● | - |
- *3.The maximum load current specifications vary depending on the output terminals. For details, please refer to the manual.
When using for the master station, please select the following products.
Safety protocol version: 1

Model | Input type DC input |
Input points | Rated input voltage/ current |
Wiring type | Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|
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NZ2GFSS2-8D | Negative common | Single wiring: 8 points Double wiring: 4 points |
24 V DC (7 mA) | 2-wire | ● | ● | ● |
NZ2GFSS2-32D | Negative common | Single wiring: 32 points Double wiring: 16 points |
24 V DC (6 mA) | 2-wire | ● | ● | ● |
Safety protocol version: 1

Model | Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type | Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|
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NZ2GFSS2-8TE | Source + source | Single wiring: 8 points Double wiring: 4 points |
24 V DC (0.5 A/point) | 2-wire | ● | ● | ● |
Safety protocol version: 1

Model | Input type DC input |
Input points | Rated input voltage/ current |
Output type Transistor output |
Output points | Rated load voltage/ Max. load current |
Wiring type | Extension module connectability |
Connectable device |
|
---|---|---|---|---|---|---|---|---|---|---|
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NZ2GFSS2-16DTE | Negative common |
Single wiring: 8 points Double wiring: 4 points |
24 V DC (7 mA) |
Source + source |
Single wiring: 8 points Double wiring: 4 points |
24 V DC (0.5 A/point) |
2-wire | ● | ● | ● |