Description
IM 308-B — Interface Module (COM)
Siemens · IM 308-B · 6ES5 308-3UB11
Description
SIMATIC S5 IM 308-B interface module serving as the master interface (mounted in the central controller) for SINEC L2-DP / PROFIBUS-DP, usable across S5-115U to S5-155U controllers. It provides two isolated serial two-wire bus terminals, each supporting a chained distance of up to 3000 m, enabling connection of distributed I/O and expansion racks over the fieldbus. In block-module controllers such as the S5-115U it requires an adapter casing (6ES5 491-0L.11). It is held as a communications spare.
Key specifications
Parameter | Value |
Function | SINEC L2-DP / PROFIBUS-DP master interface |
Type | IM 308-B (mounted in central controller) |
Bus terminals | 2 isolated serial two-wire bus terminals |
Max distance | Up to 3000 m per bus chain |
Compatible systems | S5-115U to S5-155U |
Note | Requires adapter casing 6ES5 491-0L.11 in block-module controllers |
Reference
Field | Value |
Manufacturer (OEM) | Siemens |
Model | IM 308-B |
Part number | 6ES5 308-3UB11 |
Category | Communication / Interface |
Installed location | Central controller (spare) |
Installed qty (this panel) | 2 |
Source panel: Seawater Screen Control Panel (tag 10GAA00GH001), Siemens SIMATIC S5. Filed in the AI HW Knowledge Base.