Parallel Bus (I-8K Series) VS Serial Bus (I-87K Series) I/O Modules
There are two types of I/O communication bus, parallel bus and serial bus. The parallel bus type I/O modules (high profile I-8K series) are high speed ones used only in the PACs including XPAC, WinPAC, iPAC, ViewPAC, etc. And the serial bus type I/O modules (high profile I-87K series) are low speed ones used in both PACs including XPAC, WinPAC, iPAC, ViewPAC, etc., and I/O expansion units including RU87Pn, ET-87Pn, USB-87Pn, etc.
A Comparison Between I-8KW Series and I-87KW Series
| Models | I-8K Series | I-87KRW Series | I-87K Series |
|---|---|---|---|
| Communication Interface | Parallel bus | Serial bus | |
| Protocol | - | DCON | |
| DI with latched function | - | Yes | |
| DI with counter input | - | Yes (100 Hz) | |
| Power on value | - | Yes | Yes |
| Safe value | - | Yes | Yes |
| Programmable slew-rate for AO module | - | Yes | |
High Profile VS Low Profile
With different form factor, I/O modules can be classified to high profile and low profile. Basically, high profile and low profile modules that with same item number also have same I/O channel number.
For example: I-8054 and I-8054W both has 8 DI and 8 DO.
I/O Modules for Supported PAC/ViewPAC
There are two types of I/O modules, Parallel and Serial. The I-8K series modules are high-speed modules with parallel interface and the I-87K series are serial interface modules. Both they are supported on PAC (Programmable Automation Controller) units listed in the following table.
| OS | PAC/ViewPAC Series | I-8K Series | I-87K Series | ||
|---|---|---|---|---|---|
| High Profile | Low Profile |
High Profile | Low Profile |
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| WES7 | XP-8000-WES7 | Yes | - | Yes | - |
| WES iPPC with I/O Slot(s) | Yes | - | Yes | - | |
| WinCE | WP-8000-CE7/WP-8000 | Yes | - | Yes | - |
| XP-8000-CE6 | Yes | - | Yes | - | |
| WinCE ViewPAC with I/O Slot(s) | Yes | - | Yes | - | |
| Linux | LP-8000 | Yes | - | Yes | - |
| LX-8000 | Yes | - | Yes | - | |
| MiniOS7 | iP-8000 | Yes | - | Yes | - |
| I-8000 | Yes | Yes | Yes | Yes | |
| MiniOS7 ViewPAC with I/O Slot(s) | Yes | - | Yes | - | |
I/O Modules for Supported Remote I/O Expansion Units
The high-speed I-8K series are parallel interface modules and I-87K series are serial interface modules. Both they are supported on PAC-base slave I/O unit. But only I-87K series modules are supported on expansion I/O units like I-87Kn, ET-87Pn, RU-87Pn and USB-87Pn series units.
| Protocol | I/O Expansion Units | Interface | I-8K Series | I-87K Series | Misc | |||
|---|---|---|---|---|---|---|---|---|
| High Profile | Low Profile |
High Profile | Low Profile |
Ethernet | IP Address | |||
| DCON | RU-87Pn | RS-485 | - | - | Yes | - | 2 (10/100 M) | - |
| ET-87Pn | Ethernet | - | - | Yes | - | - | - | |
| USB-87Pn | USB | - | - | Yes | - | - | - | |
| I-87Kn | RS-485 | - | - | Yes | Yes | - | - | |
| I-8KEn |
Ethernet, RS-485 | Yes | Yes | Yes | Yes | 1 (10 M) | - | |
| Modbus RTU | iP-8000-MRTU | RS-485 | Yes | - | Yes | - | - | - |
| Modbus TCP | iP-8000-MTCP | Ethernet, RS-485 | Yes | - | Yes | - | 2 (10/100 M) | 2 |
| ET-8KPn-MTCP | Yes | - | Yes | - | 2 (10/100 M) | 1 | ||
| I-8KEn-MTCP |
Yes | Yes | Yes | Yes | 1 (10 M) | 1 | ||
| Modbus RTU, Modbus TCP |
ET-87Pn-MTCP | Ethernet | - | - | Yes | - | 2 (10/100 M) | 1 |
| Voltage/Current/Sensor Input Module
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Voltage/Current/Sensor Input Module
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| Model | AI | |||||
|---|---|---|---|---|---|---|
| I-8K | I-87K | Channel | Voltage Input | Current Input | Sensor Input | Resolution |
| - | I-87013-G |
4 | - | - | 2/3/4-Wire RTD (Pt, Ni) |
16-bit |
| I-8017H-G
|
- | 8 | ±1.25 V, ±2.5 V, ±5 V, ±10 V |
±20 mA | - | 14-bit |
| - | I-87017-G
|
±150 mV, ±500 mV, ±1 VDC, ±5 VDC ±10 VDC |
16-bit/ 12-bit |
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| - | I-87018-G
|
8 | ±15 mV, ±50 mV, ±100 mV, ±500 mV, ±1 VDC, ±2.5 VDC |
±20 mA | Thermocouple (J, K, T, E, R, S, B, N, C, L, M, LDIN43710) |
16-bit |
| Voltage and Current Output Module
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Voltage and Current Output Module
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| Model | AO | |||||
|---|---|---|---|---|---|---|
| I-8K | I-87K | Channel | Voltage Output | Current Output | Resolution | Current Output Wiring |
| - | I-87022-G
|
2 | 0 ~ 10 V | 0 ~ +20 mA, +4 ~ +20 mA |
12-bit | Source |
| - | I-87026-G |
16-bit | ||||
| I-8024-G
|
- | 4 | ±10 V | 0 ~ +20 mA | 14-bit | Sink |
| - | I-87024-G
|
0 ~ +5 VDC, ±5 VDC, 0 ~ +10 VDC, ±10 VDC |
0 ~ +20 mA, +4 ~ +20 mA |
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| DC Digital I/O Module
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DC Digital I/O Module
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| Model | DO | DI | ||||||
|---|---|---|---|---|---|---|---|---|
| I-8K | I-87K | Channel | Type | Sink/Source | Max. Load Current | Channel | Type | Sink/Source |
| I-8037-G
|
- | 16 | Open Collector | Source | 100 mA/channel | - | - | - |
| I-8041-G
|
I-87041-G
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32 | Open Collector | Sink | 100 mA/channel | - | - | - |
| I-8056-G
|
- | 16 | 125 mA/channel | |||||
| I-8057-G
|
I-87057-G
|
100 mA/channel | ||||||
| I-8042-G
|
-
|
16 | Open Collector | Sink, Source | 100 mA/channel | 16 | Wet | Sink, Source |
| I-8050-G
|
- | 16 (Bi-dir) |
16 (Bi-dir) |
Wet, Dry | Source | |||
| I-8054-G
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I-87054-G
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8 | Open Collector | Sink | 375 mA/channel | 8 | Wet | Sink, Source |
| I-8055-G
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I-87055-G
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100 mA/channel | Dry | Source | ||||
| I-8040-G
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I-87040-G
|
- | - | - | - | 32 | Wet | Sink, Source |
| I-8048-G
|
- | 8 | Wet, Dry | |||||
| I-8051-G
|
I-87051-G
|
- | - | - | - | 16 | Dry | Source |
| I-8052-G
|
I-87052-G
|
8 | Wet | Sink, Source | ||||
| I-8053-G
|
I-87053-G
|
16 | ||||||
| AC Digital I/O Module
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AC Digital I/O Module
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| Model | Channel | AC Frequency | ON Level | OFF Level | Input Impedance | |
|---|---|---|---|---|---|---|
| I-8K | I-87K | |||||
| I-8058-G
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I-87058-G
|
8 DI | 50 ~ 400 Hz | 80 ~ 250 VAC | 30 VAC Max. | 68 kOhm, 1 W |
| Relay Output and Digital Input Module
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Relay Output and Digital Input Module
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| Model | DO | DI | ||||||
|---|---|---|---|---|---|---|---|---|
| I-8K | I-87K | Channel | Relay | Type | Max. Load Current | Channel | Type | Sink/Source |
| I-8060-G
|
- | 6 | Power Relay | Form C | 2 A/channel | - | - | - |
| I-8063-G
|
I-87063-G
|
4 | 4 | Wet | Sink, Source | |||
| I-8064-G
|
I-87064-G
|
8 | Power Relay | Form A | 5 A/channel | -
|
-
|
-
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| I-8065-G
|
I-87065-G
|
AC SSR | 1 A/channel | |||||
| I-8066-G
|
I-87066-G
|
DC SSR | ||||||
| I-8068-G
|
I-87068-G
|
Power Relay | Form A × 4 Form C × 4 |
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| I-8069-G
|
I-87069-G
|
PhotoMOS Relay | Form A | 0.13 A/channel | ||||
| Counter/Frequency/Encoder Input Module
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Counter/Frequency/Encoder Input Module
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| Model | Counter/Frequency/Encoder Input | DO | ||||||
|---|---|---|---|---|---|---|---|---|
| I-8K | I-87K | Channel/Axis | Encoder | Counter | Frequency | Counting Rate | Channel | Type |
| I-8080-G
|
- | 4/8 | CW/CCW Pulse/Dir |
Up Up/Down |
Yes | 450 kHz Max. | - | - |
| - | I-87082-G
|
2 | - | Up | Yes | 100 kHz Max. | 2 | Open Collector |
| Note 1: Can be used with ISaGRAF or I-8000 only. | ||||||||
| Motion Control Module
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Motion Control Module
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| Model | Motor Control Output | Encoder Input | Added Function | |||||
|---|---|---|---|---|---|---|---|---|
| I-8K | Axis | Signal | Pulse Output Rate | Resolution | Axis | Signal | Counting Rate | |
| I-8090-G
(Note 1) |
- | - | - | - | 3 | CW/CCW Pulse/Dir AB Phase |
1 MHz Max. | - |
| I-8091-G
(Note 1) |
2 | CW/CCW Pulse/Dir |
1 MHz Max. | 32-bit | - | - | - | - |
| Note 1: Can be used with ISaGRAF or I-8000 only. | ||||||||
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Blank I/O Module
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| Model | Description |
|---|---|
| 4SIPP-801-CAB
|
Low profile blank I/O module |
| 4SIPP-801-CAG
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MultiMedia Card (MMC) I/O Module
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| Model | Memory Socket | Analog Input | Digital Input | Digital Output | ||
|---|---|---|---|---|---|---|
| I-8K | Socket | Type | Channel | Range | Channel | Channel |
| I-8073
|
1 | MultiMedia Card (MMC) | 1 | 1 | 0 ~ +5 VDC, ±5 VDC | 4 |
